Subtract 18/28 from 1/2
1/2 - 18/28 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
1/2 = 1 × 14/2 × 14 = 14/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
18/28 = 18 × 1/28 × 1 = 18/28 - Subtract the two like fractions:
14/28 - 18/28 = 14 - 18/28 = -4/28 - After reducing the fraction, the answer is -1/7
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