Subtract 81/28 from 5/16
1st number: 5/16, 2nd number: 2 25/28
5/16 - 81/28 is -289/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 28 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
5/16 = 5 × 7/16 × 7 = 35/112 - Likewise, for the 2nd fraction, since 28 × 4 = 112,
81/28 = 81 × 4/28 × 4 = 324/112 - Subtract the two like fractions:
35/112 - 324/112 = 35 - 324/112 = -289/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/16-81/28 5/32-81/28 5/16-81/56 15/16-81/28 5/48-81/28 5/16-81/84 25/16-81/28 5/80-81/28 35/16-81/28