Subtract 4/7 from 20/6, Solve 3 2/6

Subtract 4/7 from 20/6

1^st number: 3 2/6, 2^nd number: 4/7

20/6 - 4/7 is 58/21.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 6 × 7 = 42,
20/6 = 20 × 7/6 × 7 = 140/42
Likewise, for the 2nd fraction, since 7 × 6 = 42,
4/7 = 4 × 6/7 × 6 = 24/42
Subtract the two like fractions:
140/42 - 24/42 = 140 - 24/42 = 116/42
After reducing the fraction, the answer is 58/21
In mixed form: 216/21

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