Subtract 10/28 from 90/8
1st number: 11 2/8, 2nd number: 10/28
90/8 - 10/28 is 305/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
90/8 = 90 × 7/8 × 7 = 630/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
10/28 = 10 × 2/28 × 2 = 20/56 - Subtract the two like fractions:
630/56 - 20/56 = 630 - 20/56 = 610/56 - After reducing the fraction, the answer is 305/28
- In mixed form: 1025/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8-20/28 90/16-10/28 90/8-10/56 90/8-30/28 90/24-10/28 90/8-10/84 90/8-50/28 90/40-10/28 90/8-70/28 90/56-10/28