Subtract 42/16 from 2/7
1st number: 2/7, 2nd number: 2 10/16
2/7 - 42/16 is -131/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 7 × 16 = 112,
2/7 = 2 × 16/7 × 16 = 32/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
42/16 = 42 × 7/16 × 7 = 294/112 - Subtract the two like fractions:
32/112 - 294/112 = 32 - 294/112 = -262/112 - After reducing the fraction, the answer is -131/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/7-42/16 2/7-84/16 2/14-42/16 2/7-42/32 6/7-42/16 2/21-42/16 2/7-42/48 10/7-42/16 2/35-42/16 2/7-42/80 14/7-42/16 2/49-42/16