Add 42/18 and 12/4
1st number: 2 6/18, 2nd number: 3 0/4
42/18 + 12/4 is 16/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
42/18 = 42 × 2/18 × 2 = 84/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
12/4 = 12 × 9/4 × 9 = 108/36 - Add the two like fractions:
84/36 + 108/36 = 84 + 108/36 = 192/36 - 192/36 simplified gives 16/3
- So, 42/18 + 12/4 = 16/3
In mixed form: 51/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+12/4 42/18+24/4 42/36+12/4 42/18+12/8 42/18+36/4 42/54+12/4 42/18+60/4 42/90+12/4 42/18+12/20 42/18+84/4 42/18+12/28