Subtract 10/7 from 42/8
1st number: 5 2/8, 2nd number: 1 3/7
42/8 - 10/7 is 107/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
42/8 = 42 × 7/8 × 7 = 294/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
10/7 = 10 × 8/7 × 8 = 80/56 - Subtract the two like fractions:
294/56 - 80/56 = 294 - 80/56 = 214/56 - After reducing the fraction, the answer is 107/28
- In mixed form: 323/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-10/7 42/8-20/7 42/16-10/7 42/8-10/14 42/8-30/7 42/24-10/7 42/8-10/21 42/8-50/7 42/40-10/7 42/8-10/35 42/8-70/7 42/56-10/7 42/8-10/49