Add 64/12 and 20/18, Solve 5 4/12 + 1 2/18 as a fraction

Add 64/12 and 20/18

1^st number: 5 4/12, 2^nd number: 1 2/18

64/12 + 20/18 is 58/9.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 12 × 3 = 36,
64/12 = 64 × 3/12 × 3 = 192/36
Likewise, for the 2nd fraction, since 18 × 2 = 36,
20/18 = 20 × 2/18 × 2 = 40/36
Add the two like fractions:
192/36 + 40/36 = 192 + 40/36 = 232/36
232/36 simplified gives 58/9
So, 64/12 + 20/18 = 58/9
In mixed form: 64/9

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