Add 63/18 and 20/30
1st number: 3 9/18, 2nd number: 20/30
63/18 + 20/30 is 25/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
63/18 = 63 × 5/18 × 5 = 315/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
20/30 = 20 × 3/30 × 3 = 60/90 - Add the two like fractions:
315/90 + 60/90 = 315 + 60/90 = 375/90 - 375/90 simplified gives 25/6
- So, 63/18 + 20/30 = 25/6
In mixed form: 41/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18+40/30 63/36+20/30 63/18+20/60 63/18+60/30 63/54+20/30 63/18+20/90 63/90+20/30