Add 20/30 and 21/12, Solve 20/30 + 1 9/12 as a fraction

Add 20/30 and 21/12

1^st number: 20/30, 2^nd number: 1 9/12

20/30 + 21/12 is 29/12.

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

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 30 × 2 = 60,
20/30 = 20 × 2/30 × 2 = 40/60
Likewise, for the 2nd fraction, since 12 × 5 = 60,
21/12 = 21 × 5/12 × 5 = 105/60
Add the two like fractions:
40/60 + 105/60 = 40 + 105/60 = 145/60
145/60 simplified gives 29/12
So, 20/30 + 21/12 = 29/12
In mixed form: 25/12

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