Add 9/84 and 14/70
9/84 + 14/70 is 43/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
9/84 = 9 × 5/84 × 5 = 45/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
14/70 = 14 × 6/70 × 6 = 84/420 - Add the two like fractions:
45/420 + 84/420 = 45 + 84/420 = 129/420 - 129/420 simplified gives 43/140
- So, 9/84 + 14/70 = 43/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/84+14/70 9/84+28/70 27/84+14/70 9/84+42/70 45/84+14/70 63/84+14/70 9/84+98/70