Subtract 63/36 from 21/10
1st number: 2 1/10, 2nd number: 1 27/36
21/10 - 63/36 is 7/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 10 × 18 = 180,
21/10 = 21 × 18/10 × 18 = 378/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
63/36 = 63 × 5/36 × 5 = 315/180 - Subtract the two like fractions:
378/180 - 315/180 = 378 - 315/180 = 63/180 - After reducing the fraction, the answer is 7/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-63/36 21/20-63/36 21/10-63/72 63/10-63/36 21/30-63/36 21/50-63/36 21/70-63/36