Subtract 36/7 from 54/8, Solve 6 6/8

Subtract 36/7 from 54/8

1^st number: 6 6/8, 2^nd number: 5 1/7

54/8 - 36/7 is 45/28.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 8 × 7 = 56,
54/8 = 54 × 7/8 × 7 = 378/56
Likewise, for the 2nd fraction, since 7 × 8 = 56,
36/7 = 36 × 8/7 × 8 = 288/56
Subtract the two like fractions:
378/56 - 288/56 = 378 - 288/56 = 90/56
After reducing the fraction, the answer is 45/28
In mixed form: 117/28

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