Add 14/84 and 12/90
14/84 + 12/90 is 3/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
14/84 = 14 × 15/84 × 15 = 210/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
12/90 = 12 × 14/90 × 14 = 168/1260 - Add the two like fractions:
210/1260 + 168/1260 = 210 + 168/1260 = 378/1260 - 378/1260 simplified gives 3/10
- So, 14/84 + 12/90 = 3/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/84+12/90 14/84+24/90 42/84+12/90 14/84+36/90 70/84+12/90 14/84+60/90 98/84+12/90 14/84+84/90