Subtract 72/7 from 50/9
1st number: 5 5/9, 2nd number: 10 2/7
50/9 - 72/7 is -298/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
50/9 = 50 × 7/9 × 7 = 350/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
72/7 = 72 × 9/7 × 9 = 648/63 - Subtract the two like fractions:
350/63 - 648/63 = 350 - 648/63 = -298/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/18-72/7 50/9-72/14 50/27-72/7 50/9-72/21 50/45-72/7 50/9-72/35 50/63-72/7 50/9-72/49