Subtract 35/70 from 15/18, Solve 15/18

Subtract 35/70 from 15/18

15/18 - 35/70 is 1/3.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 18 × 35 = 630,
15/18 = 15 × 35/18 × 35 = 525/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
35/70 = 35 × 9/70 × 9 = 315/630
Subtract the two like fractions:
525/630 - 315/630 = 525 - 315/630 = 210/630
After reducing the fraction, the answer is 1/3

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