Answers

Subtract 40/14 from 21/6

1^st number: 3 3/6, 2^nd number: 2 12/14

21/6 - 40/14 is 9/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 6 and 14 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 6 × 7 = 42,
   21/6 = 21 × 7/6 × 7 = 147/42
3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
   40/14 = 40 × 3/14 × 3 = 120/42
4. Subtract the two like fractions:
   147/42 - 120/42 = 147 - 120/42 = 27/42
5. After reducing the fraction, the answer is 9/14

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁴²/₆-⁴⁰/₁₄ ²¹/₆-⁸⁰/₁₄ ²¹/₁₂-⁴⁰/₁₄ ²¹/₆-⁴⁰/₂₈ ⁶³/₆-⁴⁰/₁₄ ²¹/₁₈-⁴⁰/₁₄ ²¹/₆-⁴⁰/₄₂ ²¹/₃₀-⁴⁰/₁₄ ²¹/₆-⁴⁰/₇₀ ²¹/₄₂-⁴⁰/₁₄ ²¹/₆-⁴⁰/₉₈

Subtract Fractions Calculator