Subtract 5/7 from 40/6, Solve 6 4/6

Subtract 5/7 from 40/6

1^st number: 6 4/6, 2^nd number: 5/7

40/6 - 5/7 is 125/21.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 6 × 7 = 42,
40/6 = 40 × 7/6 × 7 = 280/42
Likewise, for the 2nd fraction, since 7 × 6 = 42,
5/7 = 5 × 6/7 × 6 = 30/42
Subtract the two like fractions:
280/42 - 30/42 = 280 - 30/42 = 250/42
After reducing the fraction, the answer is 125/21
In mixed form: 520/21

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