Subtract 1/25 from 3/90
3/90 - 1/25 is -1/150.
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,
3/90 = 3 × 5/90 × 5 = 15/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
1/25 = 1 × 18/25 × 18 = 18/450 - Subtract the two like fractions:
15/450 - 18/450 = 15 - 18/450 = -3/450 - After reducing the fraction, the answer is -1/150
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