Add 45/84 and 3/5
45/84 + 3/5 is 159/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 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 5 × 84 = 420,
3/5 = 3 × 84/5 × 84 = 252/420 - Add the two like fractions:
225/420 + 252/420 = 225 + 252/420 = 477/420 - 477/420 simplified gives 159/140
- So, 45/84 + 3/5 = 159/140
In mixed form: 119/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+3/5 45/84+6/5 45/84+3/10 45/84+9/5 45/84+3/15 45/84+15/5 45/84+3/25 45/84+21/5 45/84+3/35