Add 14/84 and 7/20
14/84 + 7/20 is 31/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
14/84 = 14 × 5/84 × 5 = 70/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
7/20 = 7 × 21/20 × 21 = 147/420 - Add the two like fractions:
70/420 + 147/420 = 70 + 147/420 = 217/420 - 217/420 simplified gives 31/60
- So, 14/84 + 7/20 = 31/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/84+7/20 14/84+14/20 14/84+7/40 42/84+7/20 14/84+21/20 14/84+7/60 70/84+7/20 14/84+35/20 98/84+7/20 14/84+49/20