Subtract 7/42 from 42/35
1st number: 1 7/35, 2nd number: 7/42
42/35 - 7/42 is 31/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
42/35 = 42 × 6/35 × 6 = 252/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
7/42 = 7 × 5/42 × 5 = 35/210 - Subtract the two like fractions:
252/210 - 35/210 = 252 - 35/210 = 217/210 - After reducing the fraction, the answer is 31/30
- In mixed form: 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/35-7/42 42/35-14/42 42/70-7/42 42/35-7/84 42/35-21/42 42/35-35/42 42/35-49/42