Subtract 15/75 from 12/18
12/18 - 15/75 is 7/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 75 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
12/18 = 12 × 25/18 × 25 = 300/450 - Likewise, for the 2nd fraction, since 75 × 6 = 450,
15/75 = 15 × 6/75 × 6 = 90/450 - Subtract the two like fractions:
300/450 - 90/450 = 300 - 90/450 = 210/450 - After reducing the fraction, the answer is 7/15
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