Add 14/84 and 14/20
14/84 + 14/20 is 13/15.
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,
14/20 = 14 × 21/20 × 21 = 294/420 - Add the two like fractions:
70/420 + 294/420 = 70 + 294/420 = 364/420 - 364/420 simplified gives 13/15
- So, 14/84 + 14/20 = 13/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/84+14/20 14/84+28/20 14/84+14/40 42/84+14/20 14/84+42/20 14/84+14/60 70/84+14/20 14/84+70/20 98/84+14/20 14/84+98/20