Answers

Subtract 21/16 from 30/98

1^st number: 30/98, 2^nd number: 1 5/16

30/98 - 21/16 is -789/784.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 16 is 784
   
   Next, find the equivalent fraction of both fractional numbers with denominator 784
2. For the 1st fraction, since 98 × 8 = 784,
   30/98 = 30 × 8/98 × 8 = 240/784
3. Likewise, for the 2nd fraction, since 16 × 49 = 784,
   21/16 = 21 × 49/16 × 49 = 1029/784
4. Subtract the two like fractions:
   240/784 - 1029/784 = 240 - 1029/784 = -789/784

MathStep (Works offline)

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

Related: ⁶⁰/₉₈-²¹/₁₆ ³⁰/₉₈-⁴²/₁₆ ³⁰/₉₈-²¹/₃₂ ⁹⁰/₉₈-²¹/₁₆ ³⁰/₉₈-⁶³/₁₆ ³⁰/₉₈-²¹/₄₈ ³⁰/₉₈-²¹/₈₀

Subtract Fractions Calculator