Subtract 80/98 from 30/84, Solve 30/84

Subtract 80/98 from 30/84

30/84 - 80/98 is -45/98.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 98 is 588

Next, find the equivalent fraction of both fractional numbers with denominator 588
For the 1st fraction, since 84 × 7 = 588,
30/84 = 30 × 7/84 × 7 = 210/588
Likewise, for the 2nd fraction, since 98 × 6 = 588,
80/98 = 80 × 6/98 × 6 = 480/588
Subtract the two like fractions:
210/588 - 480/588 = 210 - 480/588 = -270/588
After reducing the fraction, the answer is -45/98

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