Add 20/80 and 45/27, Solve 20/80 + 1 18/27 as a fraction

Add 20/80 and 45/27

1^st number: 20/80, 2^nd number: 1 18/27

20/80 + 45/27 is 23/12.

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,
20/80 = 20 × 27/80 × 27 = 540/2160
Likewise, for the 2nd fraction, since 27 × 80 = 2160,
45/27 = 45 × 80/27 × 80 = 3600/2160
Add the two like fractions:
540/2160 + 3600/2160 = 540 + 3600/2160 = 4140/2160
4140/2160 simplified gives 23/12
So, 20/80 + 45/27 = 23/12
In mixed form: 111/12

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