Subtract 45/4 from 42/84
1st number: 42/84, 2nd number: 11 1/4
42/84 - 45/4 is -43/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
42/84 = 42 × 1/84 × 1 = 42/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
45/4 = 45 × 21/4 × 21 = 945/84 - Subtract the two like fractions:
42/84 - 945/84 = 42 - 945/84 = -903/84 - After reducing the fraction, the answer is -43/4
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