Add 48/9 and 21/12, Solve 5 3/9 + 1 9/12 as a fraction

Add 48/9 and 21/12

1^st number: 5 3/9, 2^nd number: 1 9/12

48/9 + 21/12 is 85/12.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 9 × 4 = 36,
48/9 = 48 × 4/9 × 4 = 192/36
Likewise, for the 2nd fraction, since 12 × 3 = 36,
21/12 = 21 × 3/12 × 3 = 63/36
Add the two like fractions:
192/36 + 63/36 = 192 + 63/36 = 255/36
255/36 simplified gives 85/12
So, 48/9 + 21/12 = 85/12
In mixed form: 71/12

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