Subtract 8/25 from 42/90
42/90 - 8/25 is 11/75.
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,
42/90 = 42 × 5/90 × 5 = 210/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
8/25 = 8 × 18/25 × 18 = 144/450 - Subtract the two like fractions:
210/450 - 144/450 = 210 - 144/450 = 66/450 - After reducing the fraction, the answer is 11/75
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