Subtract 80/84 from 10/5, Solve 2 0/5

Subtract 80/84 from 10/5

1^st number: 2 0/5, 2^nd number: 80/84

10/5 - 80/84 is 22/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 5 × 84 = 420,
10/5 = 10 × 84/5 × 84 = 840/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
80/84 = 80 × 5/84 × 5 = 400/420
Subtract the two like fractions:
840/420 - 400/420 = 840 - 400/420 = 440/420
After reducing the fraction, the answer is 22/21
In mixed form: 11/21

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