Add 25/84 and 15/30
25/84 + 15/30 is 67/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
25/84 = 25 × 5/84 × 5 = 125/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
15/30 = 15 × 14/30 × 14 = 210/420 - Add the two like fractions:
125/420 + 210/420 = 125 + 210/420 = 335/420 - 335/420 simplified gives 67/84
- So, 25/84 + 15/30 = 67/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84+15/30 25/84+15/60 75/84+15/30 25/84+45/30 25/84+15/90 25/84+75/30