Subtract 80/84 from 9/45
9/45 - 80/84 is -79/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
9/45 = 9 × 28/45 × 28 = 252/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
80/84 = 80 × 15/84 × 15 = 1200/1260 - Subtract the two like fractions:
252/1260 - 1200/1260 = 252 - 1200/1260 = -948/1260 - After reducing the fraction, the answer is -79/105
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