Add 15/12 and 45/10, Solve 1 3/12 + 4 5/10 as a fraction

Add 15/12 and 45/10

1^st number: 1 3/12, 2^nd number: 4 5/10

15/12 + 45/10 is 23/4.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 10 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 12 × 5 = 60,
15/12 = 15 × 5/12 × 5 = 75/60
Likewise, for the 2nd fraction, since 10 × 6 = 60,
45/10 = 45 × 6/10 × 6 = 270/60
Add the two like fractions:
75/60 + 270/60 = 75 + 270/60 = 345/60
345/60 simplified gives 23/4
So, 15/12 + 45/10 = 23/4
In mixed form: 53/4

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