Answers

Subtract 21/12 from 98/63

1^st number: 1 35/63, 2^nd number: 1 9/12

98/63 - 21/12 is -7/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 12 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   98/63 = 98 × 4/63 × 4 = 392/252
3. Likewise, for the 2nd fraction, since 12 × 21 = 252,
   21/12 = 21 × 21/12 × 21 = 441/252
4. Subtract the two like fractions:
   392/252 - 441/252 = 392 - 441/252 = -49/252
5. After reducing the fraction, the answer is -7/36

MathStep (Works offline)

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

Related: ⁹⁸/₆₃-⁴²/₁₂ ⁹⁸/₆₃-²¹/₂₄ ⁹⁸/₆₃-⁶³/₁₂ ⁹⁸/₆₃-²¹/₃₆ ⁹⁸/₆₃-²¹/₆₀ ⁹⁸/₆₃-²¹/₈₄

Subtract Fractions Calculator