Subtract 21/63 from 7/10, Solve 7/10

Subtract 21/63 from 7/10

7/10 - 21/63 is 11/30.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 10 × 63 = 630,
7/10 = 7 × 63/10 × 63 = 441/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630
Subtract the two like fractions:
441/630 - 210/630 = 441 - 210/630 = 231/630
After reducing the fraction, the answer is 11/30

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