Subtract 8/70 from 70/9, Solve 7 7/9

Subtract 8/70 from 70/9

1^st number: 7 7/9, 2^nd number: 8/70

70/9 - 8/70 is 2414/315.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 9 × 70 = 630,
70/9 = 70 × 70/9 × 70 = 4900/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
8/70 = 8 × 9/70 × 9 = 72/630
Subtract the two like fractions:
4900/630 - 72/630 = 4900 - 72/630 = 4828/630
After reducing the fraction, the answer is 2414/315
In mixed form: 7209/315

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