Subtract 60/84 from 40/45, Solve 40/45

Subtract 60/84 from 40/45

40/45 - 60/84 is 11/63.

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,
40/45 = 40 × 28/45 × 28 = 1120/1260
Likewise, for the 2nd fraction, since 84 × 15 = 1260,
60/84 = 60 × 15/84 × 15 = 900/1260
Subtract the two like fractions:
1120/1260 - 900/1260 = 1120 - 900/1260 = 220/1260
After reducing the fraction, the answer is 11/63

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