Subtract 21/56 from 15/2
1st number: 7 1/2, 2nd number: 21/56
15/2 - 21/56 is 57/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 2 × 28 = 56,
15/2 = 15 × 28/2 × 28 = 420/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Subtract the two like fractions:
420/56 - 21/56 = 420 - 21/56 = 399/56 - After reducing the fraction, the answer is 57/8
- In mixed form: 71/8
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