Add 18/27 and 42/5, Solve 18/27 + 8 2/5 as a fraction

Add 18/27 and 42/5

1^st number: 18/27, 2^nd number: 8 2/5

18/27 + 42/5 is 136/15.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 5 is 135

Next, find the equivalent fraction of both fractional numbers with denominator 135
For the 1st fraction, since 27 × 5 = 135,
18/27 = 18 × 5/27 × 5 = 90/135
Likewise, for the 2nd fraction, since 5 × 27 = 135,
42/5 = 42 × 27/5 × 27 = 1134/135
Add the two like fractions:
90/135 + 1134/135 = 90 + 1134/135 = 1224/135
1224/135 simplified gives 136/15
So, 18/27 + 42/5 = 136/15
In mixed form: 91/15

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