Add 45/30 and 42/27, Solve 1 15/30 + 1 15/27 as a fraction

Add 45/30 and 42/27

1^st number: 1 15/30, 2^nd number: 1 15/27

45/30 + 42/27 is 55/18.

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

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 30 × 9 = 270,
45/30 = 45 × 9/30 × 9 = 405/270
Likewise, for the 2nd fraction, since 27 × 10 = 270,
42/27 = 42 × 10/27 × 10 = 420/270
Add the two like fractions:
405/270 + 420/270 = 405 + 420/270 = 825/270
825/270 simplified gives 55/18
So, 45/30 + 42/27 = 55/18
In mixed form: 31/18

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