Subtract 21/20 from 36/14
1st number: 2 8/14, 2nd number: 1 1/20
36/14 - 21/20 is 213/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
36/14 = 36 × 10/14 × 10 = 360/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
21/20 = 21 × 7/20 × 7 = 147/140 - Subtract the two like fractions:
360/140 - 147/140 = 360 - 147/140 = 213/140 - In mixed form: 173/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/14-21/20 36/14-42/20 36/28-21/20 36/14-21/40 36/14-63/20 36/42-21/20 36/14-21/60 36/70-21/20 36/98-21/20