Subtract 7/18 from 45/75, Solve 45/75

Subtract 7/18 from 45/75

45/75 - 7/18 is 19/90.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 75 × 6 = 450,
45/75 = 45 × 6/75 × 6 = 270/450
Likewise, for the 2nd fraction, since 18 × 25 = 450,
7/18 = 7 × 25/18 × 25 = 175/450
Subtract the two like fractions:
270/450 - 175/450 = 270 - 175/450 = 95/450
After reducing the fraction, the answer is 19/90

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