Subtract 7/63 from 30/15, Solve 2 0/15

Subtract 7/63 from 30/15

1^st number: 2 0/15, 2^nd number: 7/63

30/15 - 7/63 is 17/9.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 15 × 21 = 315,
30/15 = 30 × 21/15 × 21 = 630/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
7/63 = 7 × 5/63 × 5 = 35/315
Subtract the two like fractions:
630/315 - 35/315 = 630 - 35/315 = 595/315
After reducing the fraction, the answer is 17/9
In mixed form: 18/9

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