Subtract 8/16 from 1/7
1/7 - 8/16 is -5/14.
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,
1/7 = 1 × 16/7 × 16 = 16/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
8/16 = 8 × 7/16 × 7 = 56/112 - Subtract the two like fractions:
16/112 - 56/112 = 16 - 56/112 = -40/112 - After reducing the fraction, the answer is -5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/7-8/16 1/14-8/16 1/7-8/32 3/7-8/16 1/7-24/16 1/21-8/16 1/7-8/48 5/7-8/16 1/7-40/16 1/35-8/16 1/7-8/80 1/7-56/16 1/49-8/16