Subtract 20/14 from 81/28
1st number: 2 25/28, 2nd number: 1 6/14
81/28 - 20/14 is 41/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
81/28 = 81 × 1/28 × 1 = 81/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
20/14 = 20 × 2/14 × 2 = 40/28 - Subtract the two like fractions:
81/28 - 40/28 = 81 - 40/28 = 41/28 - In mixed form: 113/28
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