Add 90/3 and 42/4, Solve 30 0/3 + 10 2/4 as a fraction

Add 90/3 and 42/4

1^st number: 30 0/3, 2^nd number: 10 2/4

90/3 + 42/4 is 81/2.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 4 is 12

Next, find the equivalent fraction of both fractional numbers with denominator 12
For the 1st fraction, since 3 × 4 = 12,
90/3 = 90 × 4/3 × 4 = 360/12
Likewise, for the 2nd fraction, since 4 × 3 = 12,
42/4 = 42 × 3/4 × 3 = 126/12
Add the two like fractions:
360/12 + 126/12 = 360 + 126/12 = 486/12
486/12 simplified gives 81/2
So, 90/3 + 42/4 = 81/2
In mixed form: 401/2

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