Add 54/81 and 3/10
54/81 + 3/10 is 29/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 10 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
54/81 = 54 × 10/81 × 10 = 540/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
3/10 = 3 × 81/10 × 81 = 243/810 - Add the two like fractions:
540/810 + 243/810 = 540 + 243/810 = 783/810 - 783/810 simplified gives 29/30
- So, 54/81 + 3/10 = 29/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/81+6/10 54/81+3/20 54/81+9/10 54/81+3/30 54/81+15/10 54/81+3/50 54/81+21/10 54/81+3/70