Subtract 18/16 from 2/7
1st number: 2/7, 2nd number: 1 2/16
2/7 - 18/16 is -47/56.
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,
18/16 = 18 × 7/16 × 7 = 126/112 - Subtract the two like fractions:
32/112 - 126/112 = 32 - 126/112 = -94/112 - After reducing the fraction, the answer is -47/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/7-18/16 2/7-36/16 2/14-18/16 2/7-18/32 6/7-18/16 2/7-54/16 2/21-18/16 2/7-18/48 10/7-18/16 2/7-90/16 2/35-18/16 2/7-18/80 14/7-18/16 2/49-18/16