Subtract 70/80 from 12/18
12/18 - 70/80 is -5/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
12/18 = 12 × 40/18 × 40 = 480/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
70/80 = 70 × 9/80 × 9 = 630/720 - Subtract the two like fractions:
480/720 - 630/720 = 480 - 630/720 = -150/720 - After reducing the fraction, the answer is -5/24
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