Add 28/40 and 24/20
1st number: 28/40, 2nd number: 1 4/20
28/40 + 24/20 is 19/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
24/20 = 24 × 2/20 × 2 = 48/40 - Add the two like fractions:
28/40 + 48/40 = 28 + 48/40 = 76/40 - 76/40 simplified gives 19/10
- So, 28/40 + 24/20 = 19/10
In mixed form: 19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+24/20 28/40+48/20 28/80+24/20 28/40+24/40 84/40+24/20 28/40+72/20 28/40+24/60