Add 21/24 and 6/30
21/24 + 6/30 is 43/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
21/24 = 21 × 5/24 × 5 = 105/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
6/30 = 6 × 4/30 × 4 = 24/120 - Add the two like fractions:
105/120 + 24/120 = 105 + 24/120 = 129/120 - 129/120 simplified gives 43/40
- So, 21/24 + 6/30 = 43/40
In mixed form: 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24+6/30 21/24+12/30 21/48+6/30 21/24+6/60 63/24+6/30 21/24+18/30 21/72+6/30 21/24+6/90 21/24+42/30