Add 30/48 and 20/81
30/48 + 20/81 is 565/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 48 × 27 = 1296,
30/48 = 30 × 27/48 × 27 = 810/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
20/81 = 20 × 16/81 × 16 = 320/1296 - Add the two like fractions:
810/1296 + 320/1296 = 810 + 320/1296 = 1130/1296 - 1130/1296 simplified gives 565/648
- So, 30/48 + 20/81 = 565/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/48+20/81 30/48+40/81 30/96+20/81 90/48+20/81 30/48+60/81