Add 80/15 and 42/12, Solve 5 5/15 + 3 6/12 as a fraction

Add 80/15 and 42/12

1^st number: 5 5/15, 2^nd number: 3 6/12

80/15 + 42/12 is 53/6.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 15 × 4 = 60,
80/15 = 80 × 4/15 × 4 = 320/60
Likewise, for the 2nd fraction, since 12 × 5 = 60,
42/12 = 42 × 5/12 × 5 = 210/60
Add the two like fractions:
320/60 + 210/60 = 320 + 210/60 = 530/60
530/60 simplified gives 53/6
So, 80/15 + 42/12 = 53/6
In mixed form: 85/6

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