Subtract 70/9 from 50/28
1st number: 1 22/28, 2nd number: 7 7/9
50/28 - 70/9 is -755/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
50/28 = 50 × 9/28 × 9 = 450/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
70/9 = 70 × 28/9 × 28 = 1960/252 - Subtract the two like fractions:
450/252 - 1960/252 = 450 - 1960/252 = -1510/252 - After reducing the fraction, the answer is -755/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/56-70/9 50/28-70/18 50/84-70/9 50/28-70/27 50/28-70/45 50/28-70/63