Subtract 30/5 from 45/84, Solve 45/84

Subtract 30/5 from 45/84

1^st number: 45/84, 2^nd number: 6 0/5

45/84 - 30/5 is -153/28.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
45/84 = 45 × 5/84 × 5 = 225/420
Likewise, for the 2nd fraction, since 5 × 84 = 420,
30/5 = 30 × 84/5 × 84 = 2520/420
Subtract the two like fractions:
225/420 - 2520/420 = 225 - 2520/420 = -2295/420
After reducing the fraction, the answer is -153/28

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