Add 12/81 and 25/30
12/81 + 25/30 is 53/54.
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,
12/81 = 12 × 10/81 × 10 = 120/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
25/30 = 25 × 27/30 × 27 = 675/810 - Add the two like fractions:
120/810 + 675/810 = 120 + 675/810 = 795/810 - 795/810 simplified gives 53/54
- So, 12/81 + 25/30 = 53/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/81+25/30 12/81+50/30 12/81+25/60 36/81+25/30 12/81+75/30 12/81+25/90 60/81+25/30 84/81+25/30