Subtract 28/40 from 42/50
42/50 - 28/40 is 7/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
42/50 = 42 × 4/50 × 4 = 168/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
28/40 = 28 × 5/40 × 5 = 140/200 - Subtract the two like fractions:
168/200 - 140/200 = 168 - 140/200 = 28/200 - After reducing the fraction, the answer is 7/50
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