Add 20/28 and 14/40
20/28 + 14/40 is 149/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
20/28 = 20 × 10/28 × 10 = 200/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
14/40 = 14 × 7/40 × 7 = 98/280 - Add the two like fractions:
200/280 + 98/280 = 200 + 98/280 = 298/280 - 298/280 simplified gives 149/140
- So, 20/28 + 14/40 = 149/140
In mixed form: 19/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/28+14/40 20/28+28/40 20/56+14/40 20/28+14/80 60/28+14/40 20/28+42/40 20/84+14/40 20/28+70/40 20/28+98/40