Add 15/84 and 24/30
15/84 + 24/30 is 137/140.
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,
15/84 = 15 × 5/84 × 5 = 75/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
24/30 = 24 × 14/30 × 14 = 336/420 - Add the two like fractions:
75/420 + 336/420 = 75 + 336/420 = 411/420 - 411/420 simplified gives 137/140
- So, 15/84 + 24/30 = 137/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84+24/30 15/84+48/30 15/84+24/60 45/84+24/30 15/84+72/30 15/84+24/90 75/84+24/30