Subtract 32/84 from 30/45, Solve 30/45

Subtract 32/84 from 30/45

30/45 - 32/84 is 2/7.

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,
30/45 = 30 × 28/45 × 28 = 840/1260
Likewise, for the 2nd fraction, since 84 × 15 = 1260,
32/84 = 32 × 15/84 × 15 = 480/1260
Subtract the two like fractions:
840/1260 - 480/1260 = 840 - 480/1260 = 360/1260
After reducing the fraction, the answer is 2/7

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