Subtract 18/28 from 1/80
1/80 - 18/28 is -353/560.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
1/80 = 1 × 7/80 × 7 = 7/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
18/28 = 18 × 20/28 × 20 = 360/560 - Subtract the two like fractions:
7/560 - 360/560 = 7 - 360/560 = -353/560
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