Subtract 72/63 from 8/2
1st number: 4 0/2, 2nd number: 1 9/63
8/2 - 72/63 is 20/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
8/2 = 8 × 63/2 × 63 = 504/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
72/63 = 72 × 2/63 × 2 = 144/126 - Subtract the two like fractions:
504/126 - 144/126 = 504 - 144/126 = 360/126 - After reducing the fraction, the answer is 20/7
- In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/2-72/63 8/4-72/63 24/2-72/63 8/6-72/63 40/2-72/63 8/10-72/63 56/2-72/63 8/14-72/63