Subtract 18/16 from 3/40
1st number: 3/40, 2nd number: 1 2/16
3/40 - 18/16 is -21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
3/40 = 3 × 2/40 × 2 = 6/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
18/16 = 18 × 5/16 × 5 = 90/80 - Subtract the two like fractions:
6/80 - 90/80 = 6 - 90/80 = -84/80 - After reducing the fraction, the answer is -21/20
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