Add 28/14 and 21/12, Solve 2 0/14 + 1 9/12 as a fraction

Add 28/14 and 21/12

1^st number: 2 0/14, 2^nd number: 1 9/12

28/14 + 21/12 is 15/4.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 14 × 6 = 84,
28/14 = 28 × 6/14 × 6 = 168/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
21/12 = 21 × 7/12 × 7 = 147/84
Add the two like fractions:
168/84 + 147/84 = 168 + 147/84 = 315/84
315/84 simplified gives 15/4
So, 28/14 + 21/12 = 15/4
In mixed form: 33/4

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