Add 84/45 and 3/7
1st number: 1 39/45, 2nd number: 3/7
84/45 + 3/7 is 241/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
84/45 = 84 × 7/45 × 7 = 588/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
3/7 = 3 × 45/7 × 45 = 135/315 - Add the two like fractions:
588/315 + 135/315 = 588 + 135/315 = 723/315 - 723/315 simplified gives 241/105
- So, 84/45 + 3/7 = 241/105
In mixed form: 231/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+6/7 84/90+3/7 84/45+3/14 84/45+9/7 84/45+3/21 84/45+15/7 84/45+3/35 84/45+21/7 84/45+3/49