Subtract 15/28 from 81/2
1st number: 40 1/2, 2nd number: 15/28
81/2 - 15/28 is 1119/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
81/2 = 81 × 14/2 × 14 = 1134/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
15/28 = 15 × 1/28 × 1 = 15/28 - Subtract the two like fractions:
1134/28 - 15/28 = 1134 - 15/28 = 1119/28 - In mixed form: 3927/28
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