Subtract 4/7 from 42/4
1st number: 10 2/4, 2nd number: 4/7
42/4 - 4/7 is 139/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
42/4 = 42 × 7/4 × 7 = 294/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
4/7 = 4 × 4/7 × 4 = 16/28 - Subtract the two like fractions:
294/28 - 16/28 = 294 - 16/28 = 278/28 - After reducing the fraction, the answer is 139/14
- In mixed form: 913/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4-4/7 42/4-8/7 42/8-4/7 42/4-4/14 42/4-12/7 42/12-4/7 42/4-4/21 42/4-20/7 42/20-4/7 42/4-4/35 42/4-28/7 42/28-4/7 42/4-4/49