Add 24/27 and 81/80
1st number: 24/27, 2nd number: 1 1/80
24/27 + 81/80 is 1369/720.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 27 × 80 = 2160,
24/27 = 24 × 80/27 × 80 = 1920/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
81/80 = 81 × 27/80 × 27 = 2187/2160 - Add the two like fractions:
1920/2160 + 2187/2160 = 1920 + 2187/2160 = 4107/2160 - 4107/2160 simplified gives 1369/720
- So, 24/27 + 81/80 = 1369/720
In mixed form: 1649/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/27+81/80 24/54+81/80 72/27+81/80 24/81+81/80