Subtract 84/30 from 8/84, Solve 8/84

Subtract 84/30 from 8/84

1^st number: 8/84, 2^nd number: 2 24/30

8/84 - 84/30 is -284/105.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420
Likewise, for the 2nd fraction, since 30 × 14 = 420,
84/30 = 84 × 14/30 × 14 = 1176/420
Subtract the two like fractions:
40/420 - 1176/420 = 40 - 1176/420 = -1136/420
After reducing the fraction, the answer is -284/105

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