Subtract 3/70 from 12/9, Solve 1 3/9

Subtract 3/70 from 12/9

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

12/9 - 3/70 is 271/210.

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,
12/9 = 12 × 70/9 × 70 = 840/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
3/70 = 3 × 9/70 × 9 = 27/630
Subtract the two like fractions:
840/630 - 27/630 = 840 - 27/630 = 813/630
After reducing the fraction, the answer is 271/210
In mixed form: 161/210

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