Subtract 2/4 from 4/80
4/80 - 2/4 is -9/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 4 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
4/80 = 4 × 1/80 × 1 = 4/80 - Likewise, for the 2nd fraction, since 4 × 20 = 80,
2/4 = 2 × 20/4 × 20 = 40/80 - Subtract the two like fractions:
4/80 - 40/80 = 4 - 40/80 = -36/80 - After reducing the fraction, the answer is -9/20
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