Subtract 45/80 from 7/14
7/14 - 45/80 is -1/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
7/14 = 7 × 40/14 × 40 = 280/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
45/80 = 45 × 7/80 × 7 = 315/560 - Subtract the two like fractions:
280/560 - 315/560 = 280 - 315/560 = -35/560 - After reducing the fraction, the answer is -1/16
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