Subtract 20/84 from 45/3, Solve 15 0/3

Subtract 20/84 from 45/3

1^st number: 15 0/3, 2^nd number: 20/84

45/3 - 20/84 is 310/21.

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,
45/3 = 45 × 28/3 × 28 = 1260/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84
Subtract the two like fractions:
1260/84 - 20/84 = 1260 - 20/84 = 1240/84
After reducing the fraction, the answer is 310/21
In mixed form: 1416/21

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