Nombor Campuran Kalkulator

Tambah, tolak, darab, dan bahagi nombor bercampur serta-merta dengan penyelesaian langkah demi langkah.

Kalkulator

Langsung
Pecahan A
+
Pecahan B
Hasilnya
0
0
0
Pecahan Tak Wajar 0/1
Nilai Perpuluhan 0.00
Definition

What is a Mixed Number in Maths?

A mixed number is a whole number combined with a proper fraction. The whole number part represents complete units, and the fraction part represents a portion of one additional unit. For example, 2¾ contains the whole number 2 and the proper fraction ¾.

Mixed numbers express values that fall between two consecutive integers. The value 2¾ sits between 2 and 3 on a number line. Every mixed number has 3 components: a whole number, a numerator (top number of the fraction), and a denominator (bottom number of the fraction).

Proper Fraction

¾

Numerator < Denominator

Improper Fraction

11/4

Numerator ≥ Denominator

Mixed Number

2¾

Whole + Proper Fraction

📝
Key Point: A mixed number and an improper fraction represent the same value. The mixed number 2¾ equals the improper fraction 11/4. Mixed numbers are easier to read, while improper fractions are easier to calculate with.

Interactive Number Line — Drag the dot

Formula

Mixed Numeral Formula

The mixed numeral formula converts between mixed numbers and improper fractions. This conversion is the first step in every mixed number calculation.

Mixed → Improper

(Whole × Denominator) + Numerator Denominator

2¾ → (2 × 4 + 3) / 4 = 11/4

Improper → Mixed

Quotient Remainder Denominator

11/4 → 11 ÷ 4 = 2 R 3 → 2¾

Try It — Convert a Mixed Number

Whole
Num
Den
→
Improper
11/4
(2 × 4) + 3 = 11
Reference

Conversion Chart

To add or subtract mixed numbers, follow these 4 steps. This conversion chart applies to every addition and subtraction problem involving mixed number fractions.

Step One: Convert the Mixed Numbers to Improper Fractions

Multiply the whole number by the denominator, then add the numerator. Place the result over the original denominator. Repeat for each mixed number in the problem.

Example: 1⅔ → (1 × 3 + 2) / 3 = 5/3 and 1¾ → (1 × 4 + 3) / 4 = 7/4

Step Two: Convert to Fractions with Matching Denominators

Find the least common denominator (LCD) of the two fractions. Multiply each fraction's numerator and denominator by the factor needed to reach the LCD.

Example: LCD of 3 and 4 is 12. Convert 5/3 → 20/12 and 7/4 → 21/12.

Step Three: Add or Subtract the Numerators

Once the denominators match, add or subtract the numerators and keep the common denominator.

Example: 20/12 + 21/12 = 41/12

Step Four: Simplify the Improper Fraction

Find the greatest common factor (GCF) of the numerator and denominator. Divide both by the GCF to reduce. Then convert back to a mixed number using long division.

Example: 41/12 → GCF(41, 12) = 1, already reduced. 41 ÷ 12 = 3 remainder 5 → 3 5⁄12

Improper FractionMixed NumberDecimal
3/21½1.50
5/41¼1.25
7/41¾1.75
5/31⅔1.67
5/22½2.50
11/42¾2.75
7/23½3.50
15/43¾3.75

Interactive Step Viewer — Click a Step

Convert each mixed number to an improper fraction. 1⅔ → (1 × 3 + 2) / 3 = 5/3 1¾ → (1 × 4 + 3) / 4 = 7/4
Find the LCD and convert both fractions. LCD(3, 4) = 12 5/3 → 20/12  |  7/4 → 21/12
Add the numerators over the common denominator. 20/12 + 21/12 = 41/12
Simplify and convert to a mixed number. GCF(41, 12) = 1 → already reduced 41 ÷ 12 = 3 R 5 → 3 ⁵⁄₁₂
Operations

Performing Arithmetic Operations on Mixed Numbers

Mixed number arithmetic requires converting to improper fractions first. There are 4 operations: addition, subtraction, multiplication, and division. Each operation follows the same starting step — convert mixed numbers to improper fractions — but the calculation method differs.

Adding Mixed Numbers

To add mixed numbers, convert both to improper fractions, find a common denominator, add the numerators, then simplify.

Equation to Add Fractions

ab + cd = (a × d) + (b × c)b × d

Example

Add 1 2⁄6 and 2 1⁄4

Convert: 1 2⁄6 = 8/6 and 2 1⁄4 = 9/4

Apply formula: (8 × 4 + 9 × 6) / (6 × 4) = (32 + 54) / 24 = 86/24

Simplify: GCF(86, 24) = 2, so 86/24 = 43/12 = 3 7⁄12

Subtracting Mixed Numbers

To subtract mixed numbers, convert both to improper fractions, find a common denominator, subtract the numerators, then simplify.

Equation to Subtract Fractions

ab − cd = (a × d) − (b × c)b × d

Example

Subtract 2 1⁄4 from 1 2⁄6

Convert: 1 2⁄6 = 8/6 and 2 1⁄4 = 9/4

Apply formula: (8 × 4 − 9 × 6) / (6 × 4) = (32 − 54) / 24 = −22/24

Simplify: GCF(22, 24) = 2, so −22/24 = −11/12

Multiplying Mixed Numbers

To multiply mixed numbers, convert both to improper fractions, multiply numerators together, multiply denominators together, then simplify.

Equation to Multiply Fractions

ab × cd = a × cb × d

Example

Multiply 1 2⁄6 by 2 1⁄4

Convert: 1 2⁄6 = 8/6 and 2 1⁄4 = 9/4

Multiply: (8 × 9) / (6 × 4) = 72/24

Simplify: 72/24 = 3/1 = 3

Dividing Mixed Numbers

To divide mixed numbers, convert both to improper fractions, flip the second fraction (reciprocal), then multiply and simplify.

Equation to Divide Fractions

ab ÷ cd = a × db × c

Example

Divide 1 2⁄6 by 2 1⁄4

Convert: 1 2⁄6 = 8/6 and 2 1⁄4 = 9/4

Flip and multiply: (8 × 4) / (6 × 9) = 32/54

Simplify: GCF(32, 54) = 2, so 32/54 = 16/27

Quick Operation Walkthrough — Pick an Operation

1Convert: 1²⁄₆ = 8/6, 2¹⁄₄ = 9/4
2Cross multiply: (8×4 + 9×6) / (6×4) = 86/24
3Simplify: 86/24 = 43/12 = 3 ⁷⁄₁₂
1Convert: 1²⁄₆ = 8/6, 2¹⁄₄ = 9/4
2Cross multiply: (8×4 − 9×6) / (6×4) = −22/24
3Simplify: GCF(22,24) = 2 → −11/12
1Convert: 1²⁄₆ = 8/6, 2¹⁄₄ = 9/4
2Multiply: (8×9) / (6×4) = 72/24
3Simplify: 72/24 = 3
1Convert: 1²⁄₆ = 8/6, 2¹⁄₄ = 9/4
2Flip & multiply: (8×4) / (6×9) = 32/54
3Simplify: GCF(32,54) = 2 → 16/27
Applications

Common Use Cases for a Mixed Number Calculator

A mixed number calculator serves 3 primary use cases:

🍳

Cooking and Baking

Recipes use mixed numbers for ingredient measurements. A mixed number calculator converts 2½ cups to decimals or scales recipes by multiplying fractions.

📐

Construction and Carpentry

Measurements in construction use fractions of inches and feet. Adding 3¼ inches to 5⅞ inches requires precise mixed number addition.

📚

Math Homework and Exams

Students use a mixed number calculator to verify manual calculations and understand each step of the solution process.

📊

Data and Measurements

Scientific measurements and statistical data often produce mixed number results that require conversion between improper fractions and decimals.

Mixed Number Calculator Usage Distribution

Simplification

Simplifying Fractions

To simplify a fraction, divide both the numerator and denominator by their greatest common factor (GCF). The GCF is the largest number that divides evenly into both values.

Not simplified 3 4⁄8
→
Simplest form 3½

To simplify a mixed number fraction, follow these 4 steps:

  1. Take the fraction part (e.g., 4⁄8).
  2. Find the GCF of the numerator and denominator → GCF(4, 8) = 4.
  3. Divide both by the GCF: 4 ÷ 4 = 1, 8 ÷ 4 = 2 → 1⁄2.
  4. Recombine with the whole number → 3½.

A fraction is fully simplified when the GCF of numerator and denominator equals 1. The mixed numeral calculator at the top of this page simplifies every result automatically.

Try It — Simplify a Fraction

/ →
2/3
GCF(24, 36) = 12 → 24÷12 / 36÷12
Soalan Lazim

Soalan Lazim

Soalan lazim tentang pengiraan nombor bercampur.

Nombor bercampur menggabungkan nombor bulat dan pecahan wajar, seperti 2 3/4. Ia mewakili nilai yang lebih besar daripada 1.
Tukar setiap nombor bercampur kepada pecahan tak wajar, cari penyebut sepunya, tambah pengangka, kemudian permudahkan dan tukar semula kepada nombor bercampur jika perlu.
Jika bahagian pecahan pertama lebih kecil, pinjam 1 daripada nombor bulat. Tambahkan 1 itu sebagai penyebut/penyebut kepada bahagian pecahan, kemudian tolak secara normal.
Tukarkan kedua-dua nombor bercampur kepada pecahan tak wajar, darab pengangka dan penyebut, kemudian mudahkan pecahan akhir.