Add 80/42 and 14/20
1st number: 1 38/42, 2nd number: 14/20
80/42 + 14/20 is 547/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
80/42 = 80 × 10/42 × 10 = 800/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
14/20 = 14 × 21/20 × 21 = 294/420 - Add the two like fractions:
800/420 + 294/420 = 800 + 294/420 = 1094/420 - 1094/420 simplified gives 547/210
- So, 80/42 + 14/20 = 547/210
In mixed form: 2127/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/42+28/20 80/84+14/20 80/42+14/40 80/42+42/20 80/42+14/60 80/42+70/20 80/42+98/20