Add 10/5 and 45/12, Solve 2 0/5 + 3 9/12 as a fraction

Add 10/5 and 45/12

1^st number: 2 0/5, 2^nd number: 3 9/12

10/5 + 45/12 is 23/4.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 5 × 12 = 60,
10/5 = 10 × 12/5 × 12 = 120/60
Likewise, for the 2nd fraction, since 12 × 5 = 60,
45/12 = 45 × 5/12 × 5 = 225/60
Add the two like fractions:
120/60 + 225/60 = 120 + 225/60 = 345/60
345/60 simplified gives 23/4
So, 10/5 + 45/12 = 23/4
In mixed form: 53/4

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