Subtract 36/84 from 9/45, Solve 9/45

Subtract 36/84 from 9/45

9/45 - 36/84 is -8/35.

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,
36/84 = 36 × 15/84 × 15 = 540/1260
Subtract the two like fractions:
252/1260 - 540/1260 = 252 - 540/1260 = -288/1260
After reducing the fraction, the answer is -8/35

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