Add 25/21 and 28/56, Solve 1 4/21 + 28/56 as a fraction

Add 25/21 and 28/56

1^st number: 1 4/21, 2^nd number: 28/56

25/21 + 28/56 is 71/42.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 21 × 8 = 168,
25/21 = 25 × 8/21 × 8 = 200/168
Likewise, for the 2nd fraction, since 56 × 3 = 168,
28/56 = 28 × 3/56 × 3 = 84/168
Add the two like fractions:
200/168 + 84/168 = 200 + 84/168 = 284/168
284/168 simplified gives 71/42
So, 25/21 + 28/56 = 71/42
In mixed form: 129/42

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