Subtract 25/28 from 9/90
9/90 - 25/28 is -111/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
9/90 = 9 × 14/90 × 14 = 126/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
25/28 = 25 × 45/28 × 45 = 1125/1260 - Subtract the two like fractions:
126/1260 - 1125/1260 = 126 - 1125/1260 = -999/1260 - After reducing the fraction, the answer is -111/140
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