Subtract 4/40 from 42/7, Solve 6 0/7

Subtract 4/40 from 42/7

1^st number: 6 0/7, 2^nd number: 4/40

42/7 - 4/40 is 59/10.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 7 × 40 = 280,
42/7 = 42 × 40/7 × 40 = 1680/280
Likewise, for the 2nd fraction, since 40 × 7 = 280,
4/40 = 4 × 7/40 × 7 = 28/280
Subtract the two like fractions:
1680/280 - 28/280 = 1680 - 28/280 = 1652/280
After reducing the fraction, the answer is 59/10
In mixed form: 59/10

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