Add 15/42 and 18/16, Solve 15/42 + 1 2/16 as a fraction

Add 15/42 and 18/16

1^st number: 15/42, 2^nd number: 1 2/16

15/42 + 18/16 is 83/56.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 42 × 8 = 336,
15/42 = 15 × 8/42 × 8 = 120/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
18/16 = 18 × 21/16 × 21 = 378/336
Add the two like fractions:
120/336 + 378/336 = 120 + 378/336 = 498/336
498/336 simplified gives 83/56
So, 15/42 + 18/16 = 83/56
In mixed form: 127/56

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