Subtract 42/20 from 15/4
1st number: 3 3/4, 2nd number: 2 2/20
15/4 - 42/20 is 33/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
15/4 = 15 × 5/4 × 5 = 75/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
42/20 = 42 × 1/20 × 1 = 42/20 - Subtract the two like fractions:
75/20 - 42/20 = 75 - 42/20 = 33/20 - In mixed form: 113/20
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