Answers

Subtract 40/18 from 10/7

1^st number: 1 3/7, 2^nd number: 2 4/18

10/7 - 40/18 is -50/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 7 × 18 = 126,
   10/7 = 10 × 18/7 × 18 = 180/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   40/18 = 40 × 7/18 × 7 = 280/126
4. Subtract the two like fractions:
   180/126 - 280/126 = 180 - 280/126 = -100/126
5. After reducing the fraction, the answer is -50/63

MathStep (Works offline)

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

Related: ²⁰/₇-⁴⁰/₁₈ ¹⁰/₇-⁸⁰/₁₈ ¹⁰/₁₄-⁴⁰/₁₈ ¹⁰/₇-⁴⁰/₃₆ ³⁰/₇-⁴⁰/₁₈ ¹⁰/₂₁-⁴⁰/₁₈ ¹⁰/₇-⁴⁰/₅₄ ⁵⁰/₇-⁴⁰/₁₈ ¹⁰/₃₅-⁴⁰/₁₈ ¹⁰/₇-⁴⁰/₉₀ ⁷⁰/₇-⁴⁰/₁₈ ¹⁰/₄₉-⁴⁰/₁₈

Subtract Fractions Calculator