Subtract 10/8 from 81/28
1st number: 2 25/28, 2nd number: 1 2/8
81/28 - 10/8 is 23/14.
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,
81/28 = 81 × 2/28 × 2 = 162/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
10/8 = 10 × 7/8 × 7 = 70/56 - Subtract the two like fractions:
162/56 - 70/56 = 162 - 70/56 = 92/56 - After reducing the fraction, the answer is 23/14
- In mixed form: 19/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/28-20/8 81/56-10/8 81/28-10/16 81/28-30/8 81/84-10/8 81/28-10/24 81/28-50/8 81/28-10/40 81/28-70/8 81/28-10/56