Add 2/20 and 28/40
2/20 + 28/40 is 4/5.
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,
2/20 = 2 × 2/20 × 2 = 4/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Add the two like fractions:
4/40 + 28/40 = 4 + 28/40 = 32/40 - 32/40 simplified gives 4/5
- So, 2/20 + 28/40 = 4/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20+28/40 2/20+56/40 2/40+28/40 2/20+28/80 6/20+28/40 2/20+84/40 2/60+28/40 10/20+28/40 14/20+28/40