Subtract 25/18 from 3/70, Solve 3/70

Subtract 25/18 from 3/70

1^st number: 3/70, 2^nd number: 1 7/18

3/70 - 25/18 is -424/315.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
3/70 = 3 × 9/70 × 9 = 27/630
Likewise, for the 2nd fraction, since 18 × 35 = 630,
25/18 = 25 × 35/18 × 35 = 875/630
Subtract the two like fractions:
27/630 - 875/630 = 27 - 875/630 = -848/630
After reducing the fraction, the answer is -424/315

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