Subtract 5/90 from 42/7, Solve 6 0/7

Subtract 5/90 from 42/7

1^st number: 6 0/7, 2^nd number: 5/90

42/7 - 5/90 is 107/18.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 7 × 90 = 630,
42/7 = 42 × 90/7 × 90 = 3780/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
5/90 = 5 × 7/90 × 7 = 35/630
Subtract the two like fractions:
3780/630 - 35/630 = 3780 - 35/630 = 3745/630
After reducing the fraction, the answer is 107/18
In mixed form: 517/18

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