Subtract 27/28 from 2/18
2/18 - 27/28 is -215/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
2/18 = 2 × 14/18 × 14 = 28/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
27/28 = 27 × 9/28 × 9 = 243/252 - Subtract the two like fractions:
28/252 - 243/252 = 28 - 243/252 = -215/252
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