Subtract 4/6 from 72/63
1st number: 1 9/63, 2nd number: 4/6
72/63 - 4/6 is 10/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 6 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
72/63 = 72 × 2/63 × 2 = 144/126 - Likewise, for the 2nd fraction, since 6 × 21 = 126,
4/6 = 4 × 21/6 × 21 = 84/126 - Subtract the two like fractions:
144/126 - 84/126 = 144 - 84/126 = 60/126 - After reducing the fraction, the answer is 10/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/63-8/6 72/63-4/12 72/63-12/6 72/63-4/18 72/63-20/6 72/63-4/30 72/63-28/6 72/63-4/42