Subtract 18/50 from 12/45, Solve 12/45

Subtract 18/50 from 12/45

12/45 - 18/50 is -7/75.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 45 × 10 = 450,
12/45 = 12 × 10/45 × 10 = 120/450
Likewise, for the 2nd fraction, since 50 × 9 = 450,
18/50 = 18 × 9/50 × 9 = 162/450
Subtract the two like fractions:
120/450 - 162/450 = 120 - 162/450 = -42/450
After reducing the fraction, the answer is -7/75

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