Subtract 8/4 from 40/72
1st number: 40/72, 2nd number: 2 0/4
40/72 - 8/4 is -13/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 4 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
40/72 = 40 × 1/72 × 1 = 40/72 - Likewise, for the 2nd fraction, since 4 × 18 = 72,
8/4 = 8 × 18/4 × 18 = 144/72 - Subtract the two like fractions:
40/72 - 144/72 = 40 - 144/72 = -104/72 - After reducing the fraction, the answer is -13/9
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