Add 30/10 and 20/81
1st number: 3 0/10, 2nd number: 20/81
30/10 + 20/81 is 263/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
30/10 = 30 × 81/10 × 81 = 2430/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
20/81 = 20 × 10/81 × 10 = 200/810 - Add the two like fractions:
2430/810 + 200/810 = 2430 + 200/810 = 2630/810 - 2630/810 simplified gives 263/81
- So, 30/10 + 20/81 = 263/81
In mixed form: 320/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10+20/81 30/10+40/81 30/20+20/81 90/10+20/81 30/10+60/81 30/50+20/81 30/70+20/81