Add 42/27 and 21/5, Solve 1 15/27 + 4 1/5 as a fraction

Add 42/27 and 21/5

1^st number: 1 15/27, 2^nd number: 4 1/5

42/27 + 21/5 is 259/45.

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,
42/27 = 42 × 5/27 × 5 = 210/135
Likewise, for the 2nd fraction, since 5 × 27 = 135,
21/5 = 21 × 27/5 × 27 = 567/135
Add the two like fractions:
210/135 + 567/135 = 210 + 567/135 = 777/135
777/135 simplified gives 259/45
So, 42/27 + 21/5 = 259/45
In mixed form: 534/45

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