Subtract 2/84 from 30/80, Solve 30/80

Subtract 2/84 from 30/80

30/80 - 2/84 is 59/168.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 84 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 80 × 21 = 1680,
30/80 = 30 × 21/80 × 21 = 630/1680
Likewise, for the 2nd fraction, since 84 × 20 = 1680,
2/84 = 2 × 20/84 × 20 = 40/1680
Subtract the two like fractions:
630/1680 - 40/1680 = 630 - 40/1680 = 590/1680
After reducing the fraction, the answer is 59/168

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