Subtract 90/24 from 56/28
1st number: 2 0/28, 2nd number: 3 18/24
56/28 - 90/24 is -7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 28 × 6 = 168,
56/28 = 56 × 6/28 × 6 = 336/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
90/24 = 90 × 7/24 × 7 = 630/168 - Subtract the two like fractions:
336/168 - 630/168 = 336 - 630/168 = -294/168 - After reducing the fraction, the answer is -7/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/28-90/48 56/84-90/24 56/28-90/72