Subtract 15/84 from 56/8, Solve 7 0/8

Subtract 15/84 from 56/8

1^st number: 7 0/8, 2^nd number: 15/84

56/8 - 15/84 is 191/28.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 8 × 21 = 168,
56/8 = 56 × 21/8 × 21 = 1176/168
Likewise, for the 2nd fraction, since 84 × 2 = 168,
15/84 = 15 × 2/84 × 2 = 30/168
Subtract the two like fractions:
1176/168 - 30/168 = 1176 - 30/168 = 1146/168
After reducing the fraction, the answer is 191/28
In mixed form: 623/28

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