Subtract 6/90 from 72/7, Solve 10 2/7

Subtract 6/90 from 72/7

1^st number: 10 2/7, 2^nd number: 6/90

72/7 - 6/90 is 1073/105.

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,
72/7 = 72 × 90/7 × 90 = 6480/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
6/90 = 6 × 7/90 × 7 = 42/630
Subtract the two like fractions:
6480/630 - 42/630 = 6480 - 42/630 = 6438/630
After reducing the fraction, the answer is 1073/105
In mixed form: 1023/105

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