Add 5/24 and 21/45
5/24 + 21/45 is 27/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
5/24 = 5 × 15/24 × 15 = 75/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
21/45 = 21 × 8/45 × 8 = 168/360 - Add the two like fractions:
75/360 + 168/360 = 75 + 168/360 = 243/360 - 243/360 simplified gives 27/40
- So, 5/24 + 21/45 = 27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/24+21/45 5/24+42/45 5/48+21/45 5/24+21/90 15/24+21/45 5/24+63/45 5/72+21/45 25/24+21/45 35/24+21/45