Add 18/5 and 15/63
1st number: 3 3/5, 2nd number: 15/63
18/5 + 15/63 is 403/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 5 × 63 = 315,
18/5 = 18 × 63/5 × 63 = 1134/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
15/63 = 15 × 5/63 × 5 = 75/315 - Add the two like fractions:
1134/315 + 75/315 = 1134 + 75/315 = 1209/315 - 1209/315 simplified gives 403/105
- So, 18/5 + 15/63 = 403/105
In mixed form: 388/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5+15/63 18/5+30/63 18/10+15/63 54/5+15/63 18/5+45/63 18/15+15/63 90/5+15/63 18/5+75/63 18/25+15/63 18/35+15/63