Subtract 18/45 from 9/28
9/28 - 18/45 is -11/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
9/28 = 9 × 45/28 × 45 = 405/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
18/45 = 18 × 28/45 × 28 = 504/1260 - Subtract the two like fractions:
405/1260 - 504/1260 = 405 - 504/1260 = -99/1260 - After reducing the fraction, the answer is -11/140
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