Add 18/42 and 42/16
1st number: 18/42, 2nd number: 2 10/16
18/42 + 42/16 is 171/56.
Steps for adding fractions
- 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,
18/42 = 18 × 8/42 × 8 = 144/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
42/16 = 42 × 21/16 × 21 = 882/336 - Add the two like fractions:
144/336 + 882/336 = 144 + 882/336 = 1026/336 - 1026/336 simplified gives 171/56
- So, 18/42 + 42/16 = 171/56
In mixed form: 33/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/42+42/16 18/42+84/16 18/84+42/16 18/42+42/32 54/42+42/16 18/42+42/48 90/42+42/16 18/42+42/80