Subtract 56/36 from 90/28
1st number: 3 6/28, 2nd number: 1 20/36
90/28 - 56/36 is 209/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
90/28 = 90 × 9/28 × 9 = 810/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
56/36 = 56 × 7/36 × 7 = 392/252 - Subtract the two like fractions:
810/252 - 392/252 = 810 - 392/252 = 418/252 - After reducing the fraction, the answer is 209/126
- In mixed form: 183/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56-56/36 90/28-56/72 90/84-56/36