Subtract 56/5 from 63/42
1st number: 1 21/42, 2nd number: 11 1/5
63/42 - 56/5 is -97/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
56/5 = 56 × 42/5 × 42 = 2352/210 - Subtract the two like fractions:
315/210 - 2352/210 = 315 - 2352/210 = -2037/210 - After reducing the fraction, the answer is -97/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/84-56/5 63/42-56/10 63/42-56/15 63/42-56/25 63/42-56/35