Subtract 20/75 from 5/90
5/90 - 20/75 is -19/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 75 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
5/90 = 5 × 5/90 × 5 = 25/450 - Likewise, for the 2nd fraction, since 75 × 6 = 450,
20/75 = 20 × 6/75 × 6 = 120/450 - Subtract the two like fractions:
25/450 - 120/450 = 25 - 120/450 = -95/450 - After reducing the fraction, the answer is -19/90
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