Subtract 15/4 from 40/84
1st number: 40/84, 2nd number: 3 3/4
40/84 - 15/4 is -275/84.
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,
40/84 = 40 × 1/84 × 1 = 40/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
15/4 = 15 × 21/4 × 21 = 315/84 - Subtract the two like fractions:
40/84 - 315/84 = 40 - 315/84 = -275/84
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