Add 28/45 and 45/12, Solve 28/45 + 3 9/12 as a fraction

Add 28/45 and 45/12

1^st number: 28/45, 2^nd number: 3 9/12

28/45 + 45/12 is 787/180.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 45 × 4 = 180,
28/45 = 28 × 4/45 × 4 = 112/180
Likewise, for the 2nd fraction, since 12 × 15 = 180,
45/12 = 45 × 15/12 × 15 = 675/180
Add the two like fractions:
112/180 + 675/180 = 112 + 675/180 = 787/180
So, 28/45 + 45/12 = 787/180
In mixed form: 467/180

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