Subtract 21/63 from 72/5
1st number: 14 2/5, 2nd number: 21/63
72/5 - 21/63 is 211/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 5 × 63 = 315,
72/5 = 72 × 63/5 × 63 = 4536/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
21/63 = 21 × 5/63 × 5 = 105/315 - Subtract the two like fractions:
4536/315 - 105/315 = 4536 - 105/315 = 4431/315 - After reducing the fraction, the answer is 211/15
- In mixed form: 141/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/5-42/63 72/10-21/63 72/15-21/63 72/25-21/63 72/35-21/63