Subtract 10/84 from 63/3, Solve 21 0/3

Subtract 10/84 from 63/3

1^st number: 21 0/3, 2^nd number: 10/84

63/3 - 10/84 is 877/42.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 3 × 28 = 84,
63/3 = 63 × 28/3 × 28 = 1764/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
10/84 = 10 × 1/84 × 1 = 10/84
Subtract the two like fractions:
1764/84 - 10/84 = 1764 - 10/84 = 1754/84
After reducing the fraction, the answer is 877/42
In mixed form: 2037/42

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