Add 40/50 and 28/40
40/50 + 28/40 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
40/50 = 40 × 4/50 × 4 = 160/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
28/40 = 28 × 5/40 × 5 = 140/200 - Add the two like fractions:
160/200 + 140/200 = 160 + 140/200 = 300/200 - 300/200 simplified gives 3/2
- So, 40/50 + 28/40 = 3/2
In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/50+28/40 40/50+56/40 40/50+28/80 40/50+84/40