Subtract 3/9 from 4/70, Solve 4/70

Subtract 3/9 from 4/70

4/70 - 3/9 is -29/105.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
4/70 = 4 × 9/70 × 9 = 36/630
Likewise, for the 2nd fraction, since 9 × 70 = 630,
3/9 = 3 × 70/9 × 70 = 210/630
Subtract the two like fractions:
36/630 - 210/630 = 36 - 210/630 = -174/630
After reducing the fraction, the answer is -29/105

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