Subtract 30/63 from 1/30, Solve 1/30

Subtract 30/63 from 1/30

1/30 - 30/63 is -31/70.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 30 × 21 = 630,
1/30 = 1 × 21/30 × 21 = 21/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
30/63 = 30 × 10/63 × 10 = 300/630
Subtract the two like fractions:
21/630 - 300/630 = 21 - 300/630 = -279/630
After reducing the fraction, the answer is -31/70

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