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

Add 72/45 and 9/12

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

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

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,
72/45 = 72 × 4/45 × 4 = 288/180
Likewise, for the 2nd fraction, since 12 × 15 = 180,
9/12 = 9 × 15/12 × 15 = 135/180
Add the two like fractions:
288/180 + 135/180 = 288 + 135/180 = 423/180
423/180 simplified gives 47/20
So, 72/45 + 9/12 = 47/20
In mixed form: 27/20

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