Add 15/80 and 20/54
15/80 + 20/54 is 241/432.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 54 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
15/80 = 15 × 27/80 × 27 = 405/2160 - Likewise, for the 2nd fraction, since 54 × 40 = 2160,
20/54 = 20 × 40/54 × 40 = 800/2160 - Add the two like fractions:
405/2160 + 800/2160 = 405 + 800/2160 = 1205/2160 - 1205/2160 simplified gives 241/432
- So, 15/80 + 20/54 = 241/432
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/80+20/54 15/80+40/54 45/80+20/54 15/80+60/54 75/80+20/54