Subtract 18/32 from 12/30
12/30 - 18/32 is -13/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 30 × 16 = 480,
12/30 = 12 × 16/30 × 16 = 192/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
18/32 = 18 × 15/32 × 15 = 270/480 - Subtract the two like fractions:
192/480 - 270/480 = 192 - 270/480 = -78/480 - After reducing the fraction, the answer is -13/80
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