Add 9/12 and 72/45, Solve 9/12 + 1 27/45 as a fraction

Add 9/12 and 72/45

1^st number: 9/12, 2^nd number: 1 27/45

9/12 + 72/45 is 47/20.

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

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 12 × 15 = 180,
9/12 = 9 × 15/12 × 15 = 135/180
Likewise, for the 2nd fraction, since 45 × 4 = 180,
72/45 = 72 × 4/45 × 4 = 288/180
Add the two like fractions:
135/180 + 288/180 = 135 + 288/180 = 423/180
423/180 simplified gives 47/20
So, 9/12 + 72/45 = 47/20
In mixed form: 27/20

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