Subtract 72/7 from 50/63
1st number: 50/63, 2nd number: 10 2/7
50/63 - 72/7 is -598/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
50/63 = 50 × 1/63 × 1 = 50/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
72/7 = 72 × 9/7 × 9 = 648/63 - Subtract the two like fractions:
50/63 - 648/63 = 50 - 648/63 = -598/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/63-72/14 50/63-72/21 50/63-72/35 50/63-72/49