Subtract 49/63 from 4/30, Solve 4/30

Subtract 49/63 from 4/30

4/30 - 49/63 is -29/45.

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,
4/30 = 4 × 21/30 × 21 = 84/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
49/63 = 49 × 10/63 × 10 = 490/630
Subtract the two like fractions:
84/630 - 490/630 = 84 - 490/630 = -406/630
After reducing the fraction, the answer is -29/45

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