Subtract 5/7 from 40/10, Solve 4 0/10

Subtract 5/7 from 40/10

1^st number: 4 0/10, 2^nd number: 5/7

40/10 - 5/7 is 23/7.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70

Next, find the equivalent fraction of both fractional numbers with denominator 70
For the 1st fraction, since 10 × 7 = 70,
40/10 = 40 × 7/10 × 7 = 280/70
Likewise, for the 2nd fraction, since 7 × 10 = 70,
5/7 = 5 × 10/7 × 10 = 50/70
Subtract the two like fractions:
280/70 - 50/70 = 280 - 50/70 = 230/70
After reducing the fraction, the answer is 23/7
In mixed form: 32/7

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