Subtract 32/7 from 42/2
1st number: 21 0/2, 2nd number: 4 4/7
42/2 - 32/7 is 115/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
42/2 = 42 × 7/2 × 7 = 294/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
32/7 = 32 × 2/7 × 2 = 64/14 - Subtract the two like fractions:
294/14 - 64/14 = 294 - 64/14 = 230/14 - After reducing the fraction, the answer is 115/7
- In mixed form: 163/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2-32/7 42/2-64/7 42/4-32/7 42/2-32/14 42/2-96/7 42/6-32/7 42/2-32/21 42/10-32/7 42/2-32/35 42/14-32/7 42/2-32/49