Add 30/20 and 45/24
1st number: 1 10/20, 2nd number: 1 21/24
30/20 + 45/24 is 27/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 20 × 6 = 120,
30/20 = 30 × 6/20 × 6 = 180/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
45/24 = 45 × 5/24 × 5 = 225/120 - Add the two like fractions:
180/120 + 225/120 = 180 + 225/120 = 405/120 - 405/120 simplified gives 27/8
- So, 30/20 + 45/24 = 27/8
In mixed form: 33/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+45/24 30/20+90/24 30/40+45/24 30/20+45/48 90/20+45/24 30/60+45/24 30/20+45/72