Answers

Subtract 20/7 from 18/98

1^st number: 18/98, 2^nd number: 2 6/7

18/98 - 20/7 is -131/49.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 7 is 98
   
   Next, find the equivalent fraction of both fractional numbers with denominator 98
2. For the 1st fraction, since 98 × 1 = 98,
   18/98 = 18 × 1/98 × 1 = 18/98
3. Likewise, for the 2nd fraction, since 7 × 14 = 98,
   20/7 = 20 × 14/7 × 14 = 280/98
4. Subtract the two like fractions:
   18/98 - 280/98 = 18 - 280/98 = -262/98
5. After reducing the fraction, the answer is -131/49

MathStep (Works offline)

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

Related: ³⁶/₉₈-²⁰/₇ ¹⁸/₉₈-⁴⁰/₇ ¹⁸/₉₈-²⁰/₁₄ ⁵⁴/₉₈-²⁰/₇ ¹⁸/₉₈-⁶⁰/₇ ¹⁸/₉₈-²⁰/₂₁ ⁹⁰/₉₈-²⁰/₇ ¹⁸/₉₈-²⁰/₃₅ ¹⁸/₉₈-²⁰/₄₉

Subtract Fractions Calculator