Add 30/10 and 42/81
1st number: 3 0/10, 2nd number: 42/81
30/10 + 42/81 is 95/27.
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,
42/81 = 42 × 10/81 × 10 = 420/810 - Add the two like fractions:
2430/810 + 420/810 = 2430 + 420/810 = 2850/810 - 2850/810 simplified gives 95/27
- So, 30/10 + 42/81 = 95/27
In mixed form: 314/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10+42/81 30/10+84/81 30/20+42/81 90/10+42/81 30/50+42/81 30/70+42/81