Subtract 60/20 from 50/42
1st number: 1 8/42, 2nd number: 3 0/20
50/42 - 60/20 is -38/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
50/42 = 50 × 10/42 × 10 = 500/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
60/20 = 60 × 21/20 × 21 = 1260/420 - Subtract the two like fractions:
500/420 - 1260/420 = 500 - 1260/420 = -760/420 - After reducing the fraction, the answer is -38/21
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