Subtract 35/72 from 21/10
1st number: 2 1/10, 2nd number: 35/72
21/10 - 35/72 is 581/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
21/10 = 21 × 36/10 × 36 = 756/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
35/72 = 35 × 5/72 × 5 = 175/360 - Subtract the two like fractions:
756/360 - 175/360 = 756 - 175/360 = 581/360 - In mixed form: 1221/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-35/72 21/10-70/72 21/20-35/72 63/10-35/72 21/30-35/72 21/50-35/72 21/70-35/72