Subtract 6/90 from 36/42, Solve 36/42

Subtract 6/90 from 36/42

36/42 - 6/90 is 83/105.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
36/42 = 36 × 15/42 × 15 = 540/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
6/90 = 6 × 7/90 × 7 = 42/630
Subtract the two like fractions:
540/630 - 42/630 = 540 - 42/630 = 498/630
After reducing the fraction, the answer is 83/105

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