Subtract 18/8 from 40/80
1st number: 40/80, 2nd number: 2 2/8
40/80 - 18/8 is -7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 8 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
40/80 = 40 × 1/80 × 1 = 40/80 - Likewise, for the 2nd fraction, since 8 × 10 = 80,
18/8 = 18 × 10/8 × 10 = 180/80 - Subtract the two like fractions:
40/80 - 180/80 = 40 - 180/80 = -140/80 - After reducing the fraction, the answer is -7/4
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