Add 18/12 and 42/16
1st number: 1 6/12, 2nd number: 2 10/16
18/12 + 42/16 is 33/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
18/12 = 18 × 4/12 × 4 = 72/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
42/16 = 42 × 3/16 × 3 = 126/48 - Add the two like fractions:
72/48 + 126/48 = 72 + 126/48 = 198/48 - 198/48 simplified gives 33/8
- So, 18/12 + 42/16 = 33/8
In mixed form: 41/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12+42/16 18/12+84/16 18/24+42/16 18/12+42/32 54/12+42/16 18/36+42/16 18/12+42/48 90/12+42/16 18/60+42/16 18/12+42/80 18/84+42/16