Subtract 10/5 from 16/84, Solve 16/84

Subtract 10/5 from 16/84

1^st number: 16/84, 2^nd number: 2 0/5

16/84 - 10/5 is -38/21.

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,
16/84 = 16 × 5/84 × 5 = 80/420
Likewise, for the 2nd fraction, since 5 × 84 = 420,
10/5 = 10 × 84/5 × 84 = 840/420
Subtract the two like fractions:
80/420 - 840/420 = 80 - 840/420 = -760/420
After reducing the fraction, the answer is -38/21

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