Subtract 10/8 from 90/28
1st number: 3 6/28, 2nd number: 1 2/8
90/28 - 10/8 is 55/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
90/28 = 90 × 2/28 × 2 = 180/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
10/8 = 10 × 7/8 × 7 = 70/56 - Subtract the two like fractions:
180/56 - 70/56 = 180 - 70/56 = 110/56 - After reducing the fraction, the answer is 55/28
- In mixed form: 127/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28-20/8 90/56-10/8 90/28-10/16 90/28-30/8 90/84-10/8 90/28-10/24 90/28-50/8 90/28-10/40 90/28-70/8 90/28-10/56