Subtract 42/8 from 15/4
1st number: 3 3/4, 2nd number: 5 2/8
15/4 - 42/8 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
15/4 = 15 × 2/4 × 2 = 30/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
42/8 = 42 × 1/8 × 1 = 42/8 - Subtract the two like fractions:
30/8 - 42/8 = 30 - 42/8 = -12/8 - After reducing the fraction, the answer is -3/2
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