Subtract 28/9 from 50/7
1st number: 7 1/7, 2nd number: 3 1/9
50/7 - 28/9 is 254/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
50/7 = 50 × 9/7 × 9 = 450/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
28/9 = 28 × 7/9 × 7 = 196/63 - Subtract the two like fractions:
450/63 - 196/63 = 450 - 196/63 = 254/63 - In mixed form: 42/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7-56/9 50/14-28/9 50/7-28/18 50/7-84/9 50/21-28/9 50/7-28/27 50/35-28/9 50/7-28/45 50/49-28/9 50/7-28/63