Subtract 10/63 from 72/18
1st number: 4 0/18, 2nd number: 10/63
72/18 - 10/63 is 242/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
72/18 = 72 × 7/18 × 7 = 504/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
10/63 = 10 × 2/63 × 2 = 20/126 - Subtract the two like fractions:
504/126 - 20/126 = 504 - 20/126 = 484/126 - After reducing the fraction, the answer is 242/63
- In mixed form: 353/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18-20/63 72/36-10/63 72/18-30/63 72/54-10/63 72/18-50/63 72/90-10/63 72/18-70/63