Add 21/28 and 28/16, Solve 21/28 + 1 12/16 as a fraction

Add 21/28 and 28/16

1^st number: 21/28, 2^nd number: 1 12/16

21/28 + 28/16 is 5/2.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 28 × 4 = 112,
21/28 = 21 × 4/28 × 4 = 84/112
Likewise, for the 2nd fraction, since 16 × 7 = 112,
28/16 = 28 × 7/16 × 7 = 196/112
Add the two like fractions:
84/112 + 196/112 = 84 + 196/112 = 280/112
280/112 simplified gives 5/2
So, 21/28 + 28/16 = 5/2
In mixed form: 21/2

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