Add 2/84 and 45/70
2/84 + 45/70 is 2/3.
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,
2/84 = 2 × 5/84 × 5 = 10/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
45/70 = 45 × 6/70 × 6 = 270/420 - Add the two like fractions:
10/420 + 270/420 = 10 + 270/420 = 280/420 - 280/420 simplified gives 2/3
- So, 2/84 + 45/70 = 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/84+45/70 2/84+90/70 6/84+45/70 10/84+45/70 14/84+45/70