Subtract 72/27 from 84/40
1st number: 2 4/40, 2nd number: 2 18/27
84/40 - 72/27 is -17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
84/40 = 84 × 27/40 × 27 = 2268/1080 - Likewise, for the 2nd fraction, since 27 × 40 = 1080,
72/27 = 72 × 40/27 × 40 = 2880/1080 - Subtract the two like fractions:
2268/1080 - 2880/1080 = 2268 - 2880/1080 = -612/1080 - After reducing the fraction, the answer is -17/30
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