Subtract 10/63 from 70/9, Solve 7 7/9

Subtract 10/63 from 70/9

1^st number: 7 7/9, 2^nd number: 10/63

70/9 - 10/63 is 160/21.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 9 × 7 = 63,
70/9 = 70 × 7/9 × 7 = 490/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
10/63 = 10 × 1/63 × 1 = 10/63
Subtract the two like fractions:
490/63 - 10/63 = 490 - 10/63 = 480/63
After reducing the fraction, the answer is 160/21
In mixed form: 713/21

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