Add 8/30 and 42/18
1st number: 8/30, 2nd number: 2 6/18
8/30 + 42/18 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
8/30 = 8 × 3/30 × 3 = 24/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Add the two like fractions:
24/90 + 210/90 = 24 + 210/90 = 234/90 - 234/90 simplified gives 13/5
- So, 8/30 + 42/18 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/30+42/18 8/30+84/18 8/60+42/18 8/30+42/36 24/30+42/18 8/90+42/18 8/30+42/54 40/30+42/18 8/30+42/90 56/30+42/18