Subtract 27/16 from 40/28
1st number: 1 12/28, 2nd number: 1 11/16
40/28 - 27/16 is -29/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 28 × 4 = 112,
40/28 = 40 × 4/28 × 4 = 160/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
27/16 = 27 × 7/16 × 7 = 189/112 - Subtract the two like fractions:
160/112 - 189/112 = 160 - 189/112 = -29/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28-27/16 40/28-54/16 40/56-27/16 40/28-27/32 40/28-81/16 40/84-27/16 40/28-27/48 40/28-27/80