Add 24/80 and 28/72
24/80 + 28/72 is 31/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 72 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
24/80 = 24 × 9/80 × 9 = 216/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
28/72 = 28 × 10/72 × 10 = 280/720 - Add the two like fractions:
216/720 + 280/720 = 216 + 280/720 = 496/720 - 496/720 simplified gives 31/45
- So, 24/80 + 28/72 = 31/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/80+28/72 24/80+56/72 72/80+28/72 24/80+84/72