Subtract 18/4 from 84/40
1st number: 2 4/40, 2nd number: 4 2/4
84/40 - 18/4 is -12/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 4 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
84/40 = 84 × 1/40 × 1 = 84/40 - Likewise, for the 2nd fraction, since 4 × 10 = 40,
18/4 = 18 × 10/4 × 10 = 180/40 - Subtract the two like fractions:
84/40 - 180/40 = 84 - 180/40 = -96/40 - After reducing the fraction, the answer is -12/5
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