Subtract 6/63 from 72/7
1st number: 10 2/7, 2nd number: 6/63
72/7 - 6/63 is 214/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
72/7 = 72 × 9/7 × 9 = 648/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
6/63 = 6 × 1/63 × 1 = 6/63 - Subtract the two like fractions:
648/63 - 6/63 = 648 - 6/63 = 642/63 - After reducing the fraction, the answer is 214/21
- In mixed form: 104/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/7-12/63 72/14-6/63 72/7-18/63 72/21-6/63 72/7-30/63 72/35-6/63 72/7-42/63 72/49-6/63