Add 25/84 and 6/90
25/84 + 6/90 is 51/140.
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,
25/84 = 25 × 15/84 × 15 = 375/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
6/90 = 6 × 14/90 × 14 = 84/1260 - Add the two like fractions:
375/1260 + 84/1260 = 375 + 84/1260 = 459/1260 - 459/1260 simplified gives 51/140
- So, 25/84 + 6/90 = 51/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84+6/90 25/84+12/90 75/84+6/90 25/84+18/90 25/84+30/90 25/84+42/90