Subtract 45/90 from 10/7, Solve 1 3/7

Subtract 45/90 from 10/7

1^st number: 1 3/7, 2^nd number: 45/90

10/7 - 45/90 is 13/14.

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,
10/7 = 10 × 90/7 × 90 = 900/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
45/90 = 45 × 7/90 × 7 = 315/630
Subtract the two like fractions:
900/630 - 315/630 = 900 - 315/630 = 585/630
After reducing the fraction, the answer is 13/14

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