Subtract 1/21 from 28/6, Solve 4 4/6

Subtract 1/21 from 28/6

1^st number: 4 4/6, 2^nd number: 1/21

28/6 - 1/21 is 97/21.

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,
28/6 = 28 × 7/6 × 7 = 196/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
1/21 = 1 × 2/21 × 2 = 2/42
Subtract the two like fractions:
196/42 - 2/42 = 196 - 2/42 = 194/42
After reducing the fraction, the answer is 97/21
In mixed form: 413/21

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