Subtract 15/63 from 90/10, Solve 9 0/10

Subtract 15/63 from 90/10

1^st number: 9 0/10, 2^nd number: 15/63

90/10 - 15/63 is 184/21.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 10 × 63 = 630,
90/10 = 90 × 63/10 × 63 = 5670/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
15/63 = 15 × 10/63 × 10 = 150/630
Subtract the two like fractions:
5670/630 - 150/630 = 5670 - 150/630 = 5520/630
After reducing the fraction, the answer is 184/21
In mixed form: 816/21

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