Subtract 21/56 from 15/6
1st number: 2 3/6, 2nd number: 21/56
15/6 - 21/56 is 17/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 6 × 28 = 168,
15/6 = 15 × 28/6 × 28 = 420/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
21/56 = 21 × 3/56 × 3 = 63/168 - Subtract the two like fractions:
420/168 - 63/168 = 420 - 63/168 = 357/168 - After reducing the fraction, the answer is 17/8
- In mixed form: 21/8
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