Subtract 75/45 from 75/84, Solve 75/84

Subtract 75/45 from 75/84

1^st number: 75/84, 2^nd number: 1 30/45

75/84 - 75/45 is -65/84.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 84 × 15 = 1260,
75/84 = 75 × 15/84 × 15 = 1125/1260
Likewise, for the 2nd fraction, since 45 × 28 = 1260,
75/45 = 75 × 28/45 × 28 = 2100/1260
Subtract the two like fractions:
1125/1260 - 2100/1260 = 1125 - 2100/1260 = -975/1260
After reducing the fraction, the answer is -65/84

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