Subtract 21/16 from 40/4
1st number: 10 0/4, 2nd number: 1 5/16
40/4 - 21/16 is 139/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 4 × 4 = 16,
40/4 = 40 × 4/4 × 4 = 160/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
21/16 = 21 × 1/16 × 1 = 21/16 - Subtract the two like fractions:
160/16 - 21/16 = 160 - 21/16 = 139/16 - In mixed form: 811/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-21/16 40/4-42/16 40/8-21/16 40/4-21/32 40/4-63/16 40/12-21/16 40/4-21/48 40/20-21/16 40/4-21/80 40/28-21/16