Subtract 20/50 from 5/18, Solve 5/18

Subtract 20/50 from 5/18

5/18 - 20/50 is -11/90.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 18 × 25 = 450,
5/18 = 5 × 25/18 × 25 = 125/450
Likewise, for the 2nd fraction, since 50 × 9 = 450,
20/50 = 20 × 9/50 × 9 = 180/450
Subtract the two like fractions:
125/450 - 180/450 = 125 - 180/450 = -55/450
After reducing the fraction, the answer is -11/90

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