Add 5/30 and 36/81
5/30 + 36/81 is 11/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
5/30 = 5 × 27/30 × 27 = 135/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
36/81 = 36 × 10/81 × 10 = 360/810 - Add the two like fractions:
135/810 + 360/810 = 135 + 360/810 = 495/810 - 495/810 simplified gives 11/18
- So, 5/30 + 36/81 = 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30+36/81 5/30+72/81 5/60+36/81 15/30+36/81 5/90+36/81 25/30+36/81 35/30+36/81