Subtract 20/80 from 1/54
1/54 - 20/80 is -25/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 54 × 40 = 2160,
1/54 = 1 × 40/54 × 40 = 40/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
20/80 = 20 × 27/80 × 27 = 540/2160 - Subtract the two like fractions:
40/2160 - 540/2160 = 40 - 540/2160 = -500/2160 - After reducing the fraction, the answer is -25/108
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