Subtract 28/80 from 12/36
12/36 - 28/80 is -1/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
12/36 = 12 × 20/36 × 20 = 240/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
28/80 = 28 × 9/80 × 9 = 252/720 - Subtract the two like fractions:
240/720 - 252/720 = 240 - 252/720 = -12/720 - After reducing the fraction, the answer is -1/60
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