Add 18/63 and 84/45
1st number: 18/63, 2nd number: 1 39/45
18/63 + 84/45 is 226/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
18/63 = 18 × 5/63 × 5 = 90/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
84/45 = 84 × 7/45 × 7 = 588/315 - Add the two like fractions:
90/315 + 588/315 = 90 + 588/315 = 678/315 - 678/315 simplified gives 226/105
- So, 18/63 + 84/45 = 226/105
In mixed form: 216/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63+84/45 18/63+84/90 54/63+84/45 90/63+84/45