Subtract 1/63 from 90/5, Solve 18 0/5

Subtract 1/63 from 90/5

1^st number: 18 0/5, 2^nd number: 1/63

90/5 - 1/63 is 1133/63.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 5 × 63 = 315,
90/5 = 90 × 63/5 × 63 = 5670/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
1/63 = 1 × 5/63 × 5 = 5/315
Subtract the two like fractions:
5670/315 - 5/315 = 5670 - 5/315 = 5665/315
After reducing the fraction, the answer is 1133/63
In mixed form: 1762/63

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