Add 45/54 and 80/30, Solve 45/54 + 2 20/30 as a fraction

Add 45/54 and 80/30

1^st number: 45/54, 2^nd number: 2 20/30

45/54 + 80/30 is 7/2.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 54 × 5 = 270,
45/54 = 45 × 5/54 × 5 = 225/270
Likewise, for the 2nd fraction, since 30 × 9 = 270,
80/30 = 80 × 9/30 × 9 = 720/270
Add the two like fractions:
225/270 + 720/270 = 225 + 720/270 = 945/270
945/270 simplified gives 7/2
So, 45/54 + 80/30 = 7/2
In mixed form: 31/2

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