Add 45/84 and 24/70
45/84 + 24/70 is 123/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
45/84 = 45 × 5/84 × 5 = 225/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
24/70 = 24 × 6/70 × 6 = 144/420 - Add the two like fractions:
225/420 + 144/420 = 225 + 144/420 = 369/420 - 369/420 simplified gives 123/140
- So, 45/84 + 24/70 = 123/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+24/70 45/84+48/70 45/84+72/70