Add 80/21 and 27/56, Solve 3 17/21 + 27/56 as a fraction

Add 80/21 and 27/56

1^st number: 3 17/21, 2^nd number: 27/56

80/21 + 27/56 is 103/24.

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,
80/21 = 80 × 8/21 × 8 = 640/168
Likewise, for the 2nd fraction, since 56 × 3 = 168,
27/56 = 27 × 3/56 × 3 = 81/168
Add the two like fractions:
640/168 + 81/168 = 640 + 81/168 = 721/168
721/168 simplified gives 103/24
So, 80/21 + 27/56 = 103/24
In mixed form: 47/24

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