Subtract 10/25 from 7/90
7/90 - 10/25 is -29/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
7/90 = 7 × 5/90 × 5 = 35/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
10/25 = 10 × 18/25 × 18 = 180/450 - Subtract the two like fractions:
35/450 - 180/450 = 35 - 180/450 = -145/450 - After reducing the fraction, the answer is -29/90
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