Subtract 10/90 from 18/35, Solve 18/35

Subtract 10/90 from 18/35

18/35 - 10/90 is 127/315.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 35 × 18 = 630,
18/35 = 18 × 18/35 × 18 = 324/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
10/90 = 10 × 7/90 × 7 = 70/630
Subtract the two like fractions:
324/630 - 70/630 = 324 - 70/630 = 254/630
After reducing the fraction, the answer is 127/315

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