Add 28/20 and 10/40
1st number: 1 8/20, 2nd number: 10/40
28/20 + 10/40 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
28/20 = 28 × 2/20 × 2 = 56/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
10/40 = 10 × 1/40 × 1 = 10/40 - Add the two like fractions:
56/40 + 10/40 = 56 + 10/40 = 66/40 - 66/40 simplified gives 33/20
- So, 28/20 + 10/40 = 33/20
In mixed form: 113/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20+10/40 28/20+20/40 28/40+10/40 28/20+10/80 84/20+10/40 28/20+30/40 28/60+10/40 28/20+50/40 28/20+70/40