Subtract 18/16 from 70/80
1st number: 70/80, 2nd number: 1 2/16
70/80 - 18/16 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
70/80 = 70 × 1/80 × 1 = 70/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
18/16 = 18 × 5/16 × 5 = 90/80 - Subtract the two like fractions:
70/80 - 90/80 = 70 - 90/80 = -20/80 - After reducing the fraction, the answer is -1/4
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