Subtract 10/28 from 81/70
1st number: 1 11/70, 2nd number: 10/28
81/70 - 10/28 is 4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
81/70 = 81 × 2/70 × 2 = 162/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
10/28 = 10 × 5/28 × 5 = 50/140 - Subtract the two like fractions:
162/140 - 50/140 = 162 - 50/140 = 112/140 - After reducing the fraction, the answer is 4/5
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