Subtract 20/42 from 30/6, Solve 5 0/6

Subtract 20/42 from 30/6

1^st number: 5 0/6, 2^nd number: 20/42

30/6 - 20/42 is 95/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 6 × 7 = 42,
30/6 = 30 × 7/6 × 7 = 210/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
20/42 = 20 × 1/42 × 1 = 20/42
Subtract the two like fractions:
210/42 - 20/42 = 210 - 20/42 = 190/42
After reducing the fraction, the answer is 95/21
In mixed form: 411/21

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