Subtract 42/90 from 50/75
50/75 - 42/90 is 1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
50/75 = 50 × 6/75 × 6 = 300/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
42/90 = 42 × 5/90 × 5 = 210/450 - Subtract the two like fractions:
300/450 - 210/450 = 300 - 210/450 = 90/450 - After reducing the fraction, the answer is 1/5
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