Add 90/27 and 40/30, Solve 3 9/27 + 1 10/30 as a fraction

Add 90/27 and 40/30

1^st number: 3 9/27, 2^nd number: 1 10/30

90/27 + 40/30 is 14/3.

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

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 27 × 10 = 270,
90/27 = 90 × 10/27 × 10 = 900/270
Likewise, for the 2nd fraction, since 30 × 9 = 270,
40/30 = 40 × 9/30 × 9 = 360/270
Add the two like fractions:
900/270 + 360/270 = 900 + 360/270 = 1260/270
1260/270 simplified gives 14/3
So, 90/27 + 40/30 = 14/3
In mixed form: 42/3

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