Subtract 25/18 from 1/70, Solve 1/70

Subtract 25/18 from 1/70

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

1/70 - 25/18 is -433/315.

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,
1/70 = 1 × 9/70 × 9 = 9/630
Likewise, for the 2nd fraction, since 18 × 35 = 630,
25/18 = 25 × 35/18 × 35 = 875/630
Subtract the two like fractions:
9/630 - 875/630 = 9 - 875/630 = -866/630
After reducing the fraction, the answer is -433/315

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