Subtract 12/50 from 42/40
1st number: 1 2/40, 2nd number: 12/50
42/40 - 12/50 is 81/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 50 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
42/40 = 42 × 5/40 × 5 = 210/200 - Likewise, for the 2nd fraction, since 50 × 4 = 200,
12/50 = 12 × 4/50 × 4 = 48/200 - Subtract the two like fractions:
210/200 - 48/200 = 210 - 48/200 = 162/200 - After reducing the fraction, the answer is 81/100
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