Subtract 21/63 from 70/7, Solve 10 0/7

Subtract 21/63 from 70/7

1^st number: 10 0/7, 2^nd number: 21/63

70/7 - 21/63 is 29/3.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 7 × 9 = 63,
70/7 = 70 × 9/7 × 9 = 630/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
21/63 = 21 × 1/63 × 1 = 21/63
Subtract the two like fractions:
630/63 - 21/63 = 630 - 21/63 = 609/63
After reducing the fraction, the answer is 29/3
In mixed form: 92/3

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