Add 12/84 and 1/5
12/84 + 1/5 is 12/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
12/84 = 12 × 5/84 × 5 = 60/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
1/5 = 1 × 84/5 × 84 = 84/420 - Add the two like fractions:
60/420 + 84/420 = 60 + 84/420 = 144/420 - 144/420 simplified gives 12/35
- So, 12/84 + 1/5 = 12/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/84+1/5 12/84+2/5 12/84+1/10 36/84+1/5 12/84+3/5 12/84+1/15 60/84+1/5 12/84+1/25 12/84+7/5 12/84+1/35