Subtract 8/7 from 81/16
1st number: 5 1/16, 2nd number: 1 1/7
81/16 - 8/7 is 439/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
81/16 = 81 × 7/16 × 7 = 567/112 - Likewise, for the 2nd fraction, since 7 × 16 = 112,
8/7 = 8 × 16/7 × 16 = 128/112 - Subtract the two like fractions:
567/112 - 128/112 = 567 - 128/112 = 439/112 - In mixed form: 3103/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/16-16/7 81/32-8/7 81/16-8/14 81/16-24/7 81/48-8/7 81/16-8/21 81/16-40/7 81/80-8/7 81/16-8/35 81/16-56/7 81/16-8/49