Add 90/12 and 20/30, Solve 7 6/12 + 20/30 as a fraction

Add 90/12 and 20/30

1^st number: 7 6/12, 2^nd number: 20/30

90/12 + 20/30 is 49/6.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 12 × 5 = 60,
90/12 = 90 × 5/12 × 5 = 450/60
Likewise, for the 2nd fraction, since 30 × 2 = 60,
20/30 = 20 × 2/30 × 2 = 40/60
Add the two like fractions:
450/60 + 40/60 = 450 + 40/60 = 490/60
490/60 simplified gives 49/6
So, 90/12 + 20/30 = 49/6
In mixed form: 81/6

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