Subtract 42/8 from 7/4
1st number: 1 3/4, 2nd number: 5 2/8
7/4 - 42/8 is -7/2.
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,
7/4 = 7 × 2/4 × 2 = 14/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
42/8 = 42 × 1/8 × 1 = 42/8 - Subtract the two like fractions:
14/8 - 42/8 = 14 - 42/8 = -28/8 - After reducing the fraction, the answer is -7/2
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