Subtract 7/18 from 15/75
15/75 - 7/18 is -17/90.
Steps for subtracting fractions
- 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,
15/75 = 15 × 6/75 × 6 = 90/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
7/18 = 7 × 25/18 × 25 = 175/450 - Subtract the two like fractions:
90/450 - 175/450 = 90 - 175/450 = -85/450 - After reducing the fraction, the answer is -17/90
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