Subtract 36/20 from 75/80
1st number: 75/80, 2nd number: 1 16/20
75/80 - 36/20 is -69/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
75/80 = 75 × 1/80 × 1 = 75/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
36/20 = 36 × 4/20 × 4 = 144/80 - Subtract the two like fractions:
75/80 - 144/80 = 75 - 144/80 = -69/80
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