Subtract 7/70 from 75/9, Solve 8 3/9

Subtract 7/70 from 75/9

1^st number: 8 3/9, 2^nd number: 7/70

75/9 - 7/70 is 247/30.

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,
75/9 = 75 × 70/9 × 70 = 5250/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
7/70 = 7 × 9/70 × 9 = 63/630
Subtract the two like fractions:
5250/630 - 63/630 = 5250 - 63/630 = 5187/630
After reducing the fraction, the answer is 247/30
In mixed form: 87/30

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