Subtract 7/63 from 30/60, Solve 30/60

Subtract 7/63 from 30/60

30/60 - 7/63 is 7/18.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 60 × 21 = 1260,
30/60 = 30 × 21/60 × 21 = 630/1260
Likewise, for the 2nd fraction, since 63 × 20 = 1260,
7/63 = 7 × 20/63 × 20 = 140/1260
Subtract the two like fractions:
630/1260 - 140/1260 = 630 - 140/1260 = 490/1260
After reducing the fraction, the answer is 7/18

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