Subtract 1/21 from 42/6, Solve 7 0/6

Subtract 1/21 from 42/6

1^st number: 7 0/6, 2^nd number: 1/21

42/6 - 1/21 is 146/21.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 6 × 7 = 42,
42/6 = 42 × 7/6 × 7 = 294/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
1/21 = 1 × 2/21 × 2 = 2/42
Subtract the two like fractions:
294/42 - 2/42 = 294 - 2/42 = 292/42
After reducing the fraction, the answer is 146/21
In mixed form: 620/21

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