Add 12/81 and 18/60
12/81 + 18/60 is 121/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 60 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
12/81 = 12 × 20/81 × 20 = 240/1620 - Likewise, for the 2nd fraction, since 60 × 27 = 1620,
18/60 = 18 × 27/60 × 27 = 486/1620 - Add the two like fractions:
240/1620 + 486/1620 = 240 + 486/1620 = 726/1620 - 726/1620 simplified gives 121/270
- So, 12/81 + 18/60 = 121/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/81+18/60 12/81+36/60 36/81+18/60 12/81+54/60 60/81+18/60 12/81+90/60 84/81+18/60