Add 45/12 and 72/25, Solve 3 9/12 + 2 22/25 as a fraction

Add 45/12 and 72/25

1^st number: 3 9/12, 2^nd number: 2 22/25

45/12 + 72/25 is 663/100.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 12 × 25 = 300,
45/12 = 45 × 25/12 × 25 = 1125/300
Likewise, for the 2nd fraction, since 25 × 12 = 300,
72/25 = 72 × 12/25 × 12 = 864/300
Add the two like fractions:
1125/300 + 864/300 = 1125 + 864/300 = 1989/300
1989/300 simplified gives 663/100
So, 45/12 + 72/25 = 663/100
In mixed form: 663/100

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