Add 30/10 and 8/18
1st number: 3 0/10, 2nd number: 8/18
30/10 + 8/18 is 31/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
30/10 = 30 × 9/10 × 9 = 270/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
8/18 = 8 × 5/18 × 5 = 40/90 - Add the two like fractions:
270/90 + 40/90 = 270 + 40/90 = 310/90 - 310/90 simplified gives 31/9
- So, 30/10 + 8/18 = 31/9
In mixed form: 34/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10+8/18 30/10+16/18 30/20+8/18 30/10+8/36 90/10+8/18 30/10+24/18 30/10+8/54 30/10+40/18 30/50+8/18 30/10+8/90 30/10+56/18 30/70+8/18