Subtract 42/25 from 10/20
1st number: 10/20, 2nd number: 1 17/25
10/20 - 42/25 is -59/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
10/20 = 10 × 5/20 × 5 = 50/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
42/25 = 42 × 4/25 × 4 = 168/100 - Subtract the two like fractions:
50/100 - 168/100 = 50 - 168/100 = -118/100 - After reducing the fraction, the answer is -59/50
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