Subtract 2/12 from 49/21, Solve 2 7/21

Subtract 2/12 from 49/21

1^st number: 2 7/21, 2^nd number: 2/12

49/21 - 2/12 is 13/6.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 21 × 4 = 84,
49/21 = 49 × 4/21 × 4 = 196/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
2/12 = 2 × 7/12 × 7 = 14/84
Subtract the two like fractions:
196/84 - 14/84 = 196 - 14/84 = 182/84
After reducing the fraction, the answer is 13/6
In mixed form: 21/6

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