Add 6/81 and 75/30
1st number: 6/81, 2nd number: 2 15/30
6/81 + 75/30 is 139/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 30 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
6/81 = 6 × 10/81 × 10 = 60/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
75/30 = 75 × 27/30 × 27 = 2025/810 - Add the two like fractions:
60/810 + 2025/810 = 60 + 2025/810 = 2085/810 - 2085/810 simplified gives 139/54
- So, 6/81 + 75/30 = 139/54
In mixed form: 231/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/81+75/30 6/81+75/60 18/81+75/30 6/81+75/90 30/81+75/30 42/81+75/30