Add 20/50 and 18/28
20/50 + 18/28 is 73/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 28 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 50 × 14 = 700,
20/50 = 20 × 14/50 × 14 = 280/700 - Likewise, for the 2nd fraction, since 28 × 25 = 700,
18/28 = 18 × 25/28 × 25 = 450/700 - Add the two like fractions:
280/700 + 450/700 = 280 + 450/700 = 730/700 - 730/700 simplified gives 73/70
- So, 20/50 + 18/28 = 73/70
In mixed form: 13/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/50+18/28 20/50+36/28 20/50+18/56 60/50+18/28 20/50+54/28 20/50+18/84 20/50+90/28