Subtract 9/28 from 81/16
1st number: 5 1/16, 2nd number: 9/28
81/16 - 9/28 is 531/112.
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,
81/16 = 81 × 7/16 × 7 = 567/112 - Likewise, for the 2nd fraction, since 28 × 4 = 112,
9/28 = 9 × 4/28 × 4 = 36/112 - Subtract the two like fractions:
567/112 - 36/112 = 567 - 36/112 = 531/112 - In mixed form: 483/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/16-18/28 81/32-9/28 81/16-9/56 81/16-27/28 81/48-9/28 81/16-9/84 81/16-45/28 81/80-9/28 81/16-63/28