Answers

Subtract 40/4 from 72/10

1^st number: 7 2/10, 2^nd number: 10 0/4

72/10 - 40/4 is -14/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 4 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 10 × 2 = 20,
   72/10 = 72 × 2/10 × 2 = 144/20
3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
   40/4 = 40 × 5/4 × 5 = 200/20
4. Subtract the two like fractions:
   144/20 - 200/20 = 144 - 200/20 = -56/20
5. After reducing the fraction, the answer is -14/5

MathStep (Works offline)

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

Related: ⁷²/₁₀-⁸⁰/₄ ⁷²/₂₀-⁴⁰/₄ ⁷²/₁₀-⁴⁰/₈ ⁷²/₃₀-⁴⁰/₄ ⁷²/₁₀-⁴⁰/₁₂ ⁷²/₅₀-⁴⁰/₄ ⁷²/₁₀-⁴⁰/₂₀ ⁷²/₇₀-⁴⁰/₄ ⁷²/₁₀-⁴⁰/₂₈

Subtract Fractions Calculator