Subtract 20/84 from 28/6, Solve 4 4/6

Subtract 20/84 from 28/6

1^st number: 4 4/6, 2^nd number: 20/84

28/6 - 20/84 is 31/7.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 6 × 14 = 84,
28/6 = 28 × 14/6 × 14 = 392/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84
Subtract the two like fractions:
392/84 - 20/84 = 392 - 20/84 = 372/84
After reducing the fraction, the answer is 31/7
In mixed form: 43/7

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