Subtract 12/16 from 20/30
20/30 - 12/16 is -1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
20/30 = 20 × 8/30 × 8 = 160/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
12/16 = 12 × 15/16 × 15 = 180/240 - Subtract the two like fractions:
160/240 - 180/240 = 160 - 180/240 = -20/240 - After reducing the fraction, the answer is -1/12
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