Subtract 21/56 from 90/6
1st number: 15 0/6, 2nd number: 21/56
90/6 - 21/56 is 117/8.
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,
90/6 = 90 × 28/6 × 28 = 2520/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
21/56 = 21 × 3/56 × 3 = 63/168 - Subtract the two like fractions:
2520/168 - 63/168 = 2520 - 63/168 = 2457/168 - After reducing the fraction, the answer is 117/8
- In mixed form: 145/8
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