Add 28/21 and 2/12, Solve 1 7/21 + 2/12 as a fraction

Add 28/21 and 2/12

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

28/21 + 2/12 is 3/2.

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,
28/21 = 28 × 4/21 × 4 = 112/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
2/12 = 2 × 7/12 × 7 = 14/84
Add the two like fractions:
112/84 + 14/84 = 112 + 14/84 = 126/84
126/84 simplified gives 3/2
So, 28/21 + 2/12 = 3/2
In mixed form: 11/2

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