Add 42/72 and 63/12, Solve 42/72 + 5 3/12 as a fraction

Add 42/72 and 63/12

1^st number: 42/72, 2^nd number: 5 3/12

42/72 + 63/12 is 35/6.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 12 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72
Likewise, for the 2nd fraction, since 12 × 6 = 72,
63/12 = 63 × 6/12 × 6 = 378/72
Add the two like fractions:
42/72 + 378/72 = 42 + 378/72 = 420/72
420/72 simplified gives 35/6
So, 42/72 + 63/12 = 35/6
In mixed form: 55/6

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