Add 21/80 and 49/27, Solve 21/80 + 1 22/27 as a fraction

Add 21/80 and 49/27

1^st number: 21/80, 2^nd number: 1 22/27

21/80 + 49/27 is 4487/2160.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 27 is 2160

Next, find the equivalent fraction of both fractional numbers with denominator 2160
For the 1st fraction, since 80 × 27 = 2160,
21/80 = 21 × 27/80 × 27 = 567/2160
Likewise, for the 2nd fraction, since 27 × 80 = 2160,
49/27 = 49 × 80/27 × 80 = 3920/2160
Add the two like fractions:
567/2160 + 3920/2160 = 567 + 3920/2160 = 4487/2160
So, 21/80 + 49/27 = 4487/2160
In mixed form: 2167/2160

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