Subtract 63/60 from 42/98
1st number: 42/98, 2nd number: 1 3/60
42/98 - 63/60 is -87/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 60 is 2940
Next, find the equivalent fraction of both fractional numbers with denominator 2940 - For the 1st fraction, since 98 × 30 = 2940,
42/98 = 42 × 30/98 × 30 = 1260/2940 - Likewise, for the 2nd fraction, since 60 × 49 = 2940,
63/60 = 63 × 49/60 × 49 = 3087/2940 - Subtract the two like fractions:
1260/2940 - 3087/2940 = 1260 - 3087/2940 = -1827/2940 - After reducing the fraction, the answer is -87/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98-63/60