Add 12/3 and 42/90, Solve 4 0/3 + 42/90 as a fraction

Add 12/3 and 42/90

1^st number: 4 0/3, 2^nd number: 42/90

12/3 + 42/90 is 67/15.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 3 × 30 = 90,
12/3 = 12 × 30/3 × 30 = 360/90
Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90
Add the two like fractions:
360/90 + 42/90 = 360 + 42/90 = 402/90
402/90 simplified gives 67/15
So, 12/3 + 42/90 = 67/15
In mixed form: 47/15

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