Subtract 18/63 from 72/15
1st number: 4 12/15, 2nd number: 18/63
72/15 - 18/63 is 158/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
72/15 = 72 × 21/15 × 21 = 1512/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
18/63 = 18 × 5/63 × 5 = 90/315 - Subtract the two like fractions:
1512/315 - 90/315 = 1512 - 90/315 = 1422/315 - After reducing the fraction, the answer is 158/35
- In mixed form: 418/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15-36/63 72/30-18/63 72/15-54/63 72/45-18/63 72/15-90/63 72/75-18/63