Add 18/6 and 42/72
1st number: 3 0/6, 2nd number: 42/72
18/6 + 42/72 is 43/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 6 × 12 = 72,
18/6 = 18 × 12/6 × 12 = 216/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Add the two like fractions:
216/72 + 42/72 = 216 + 42/72 = 258/72 - 258/72 simplified gives 43/12
- So, 18/6 + 42/72 = 43/12
In mixed form: 37/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/6+42/72 18/6+84/72 18/12+42/72 54/6+42/72 90/6+42/72 18/30+42/72 18/42+42/72