Subtract 81/7 from 27/16
1st number: 1 11/16, 2nd number: 11 4/7
27/16 - 81/7 is -1107/112.
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,
27/16 = 27 × 7/16 × 7 = 189/112 - Likewise, for the 2nd fraction, since 7 × 16 = 112,
81/7 = 81 × 16/7 × 16 = 1296/112 - Subtract the two like fractions:
189/112 - 1296/112 = 189 - 1296/112 = -1107/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/16-81/7 27/32-81/7 27/16-81/14 81/16-81/7 27/48-81/7 27/16-81/21 27/80-81/7 27/16-81/35 27/16-81/49