Subtract 56/10 from 3/42
1st number: 3/42, 2nd number: 5 6/10
3/42 - 56/10 is -387/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
3/42 = 3 × 5/42 × 5 = 15/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
56/10 = 56 × 21/10 × 21 = 1176/210 - Subtract the two like fractions:
15/210 - 1176/210 = 15 - 1176/210 = -1161/210 - After reducing the fraction, the answer is -387/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42-56/10 3/84-56/10 3/42-56/20 9/42-56/10 3/42-56/30 15/42-56/10 3/42-56/50 21/42-56/10 3/42-56/70