Subtract 63/42 from 6/15
1st number: 6/15, 2nd number: 1 21/42
6/15 - 63/42 is -11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
6/15 = 6 × 14/15 × 14 = 84/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210 - Subtract the two like fractions:
84/210 - 315/210 = 84 - 315/210 = -231/210 - After reducing the fraction, the answer is -11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15-63/42 6/30-63/42 6/15-63/84 18/15-63/42 6/45-63/42 30/15-63/42 6/75-63/42 42/15-63/42