Add 12/84 and 40/49
12/84 + 40/49 is 47/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 49 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
12/84 = 12 × 7/84 × 7 = 84/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
40/49 = 40 × 12/49 × 12 = 480/588 - Add the two like fractions:
84/588 + 480/588 = 84 + 480/588 = 564/588 - 564/588 simplified gives 47/49
- So, 12/84 + 40/49 = 47/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/84+40/49 12/84+80/49 12/84+40/98 36/84+40/49 60/84+40/49