Add 90/27 and 80/30, Solve 3 9/27 + 2 20/30 as a fraction

Add 90/27 and 80/30

1^st number: 3 9/27, 2^nd number: 2 20/30

90/27 + 80/30 is 6/1.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 30 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 27 × 10 = 270,
90/27 = 90 × 10/27 × 10 = 900/270
Likewise, for the 2nd fraction, since 30 × 9 = 270,
80/30 = 80 × 9/30 × 9 = 720/270
Add the two like fractions:
900/270 + 720/270 = 900 + 720/270 = 1620/270
1620/270 simplified gives 6/1
So, 90/27 + 80/30 = 6/1

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