Add 14/84 and 12/7
1st number: 14/84, 2nd number: 1 5/7
14/84 + 12/7 is 79/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
14/84 = 14 × 1/84 × 1 = 14/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
12/7 = 12 × 12/7 × 12 = 144/84 - Add the two like fractions:
14/84 + 144/84 = 14 + 144/84 = 158/84 - 158/84 simplified gives 79/42
- So, 14/84 + 12/7 = 79/42
In mixed form: 137/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/84+12/7 14/84+24/7 14/84+12/14 42/84+12/7 14/84+36/7 14/84+12/21 70/84+12/7 14/84+60/7 14/84+12/35 98/84+12/7 14/84+84/7 14/84+12/49