Subtract 7/70 from 10/9, Solve 1 1/9

Subtract 7/70 from 10/9

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

10/9 - 7/70 is 91/90.

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,
10/9 = 10 × 70/9 × 70 = 700/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
7/70 = 7 × 9/70 × 9 = 63/630
Subtract the two like fractions:
700/630 - 63/630 = 700 - 63/630 = 637/630
After reducing the fraction, the answer is 91/90
In mixed form: 11/90

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