Subtract 21/36 from 10/5
1st number: 2 0/5, 2nd number: 21/36
10/5 - 21/36 is 17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 5 × 36 = 180,
10/5 = 10 × 36/5 × 36 = 360/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Subtract the two like fractions:
360/180 - 105/180 = 360 - 105/180 = 255/180 - After reducing the fraction, the answer is 17/12
- In mixed form: 15/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/5-21/36 10/5-42/36 10/5-21/72 30/5-21/36 10/5-63/36 10/15-21/36 50/5-21/36 10/25-21/36 70/5-21/36 10/35-21/36