Subtract 3/21 from 63/6, Solve 10 3/6

Subtract 3/21 from 63/6

1^st number: 10 3/6, 2^nd number: 3/21

63/6 - 3/21 is 145/14.

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,
63/6 = 63 × 7/6 × 7 = 441/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
3/21 = 3 × 2/21 × 2 = 6/42
Subtract the two like fractions:
441/42 - 6/42 = 441 - 6/42 = 435/42
After reducing the fraction, the answer is 145/14
In mixed form: 105/14

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