Subtract 63/5 from 42/20
1st number: 2 2/20, 2nd number: 12 3/5
42/20 - 63/5 is -21/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
42/20 = 42 × 1/20 × 1 = 42/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
63/5 = 63 × 4/5 × 4 = 252/20 - Subtract the two like fractions:
42/20 - 252/20 = 42 - 252/20 = -210/20 - After reducing the fraction, the answer is -21/2
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