Add 15/42 and 63/16, Solve 15/42 + 3 15/16 as a fraction

Add 15/42 and 63/16

1^st number: 15/42, 2^nd number: 3 15/16

15/42 + 63/16 is 481/112.

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,
63/16 = 63 × 21/16 × 21 = 1323/336
Add the two like fractions:
120/336 + 1323/336 = 120 + 1323/336 = 1443/336
1443/336 simplified gives 481/112
So, 15/42 + 63/16 = 481/112
In mixed form: 433/112

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