Add 12/30 and 8/81
12/30 + 8/81 is 202/405.
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,
12/30 = 12 × 27/30 × 27 = 324/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
8/81 = 8 × 10/81 × 10 = 80/810 - Add the two like fractions:
324/810 + 80/810 = 324 + 80/810 = 404/810 - 404/810 simplified gives 202/405
- So, 12/30 + 8/81 = 202/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30+8/81 12/30+16/81 12/60+8/81 36/30+8/81 12/30+24/81 12/90+8/81 60/30+8/81 12/30+40/81 84/30+8/81 12/30+56/81