Add 9/90 and 36/81
9/90 + 36/81 is 49/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 90 × 9 = 810,
9/90 = 9 × 9/90 × 9 = 81/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
36/81 = 36 × 10/81 × 10 = 360/810 - Add the two like fractions:
81/810 + 360/810 = 81 + 360/810 = 441/810 - 441/810 simplified gives 49/90
- So, 9/90 + 36/81 = 49/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/90+36/81 9/90+72/81 27/90+36/81 45/90+36/81 63/90+36/81