Add 63/30 and 81/18
1st number: 2 3/30, 2nd number: 4 9/18
63/30 + 81/18 is 33/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
63/30 = 63 × 3/30 × 3 = 189/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
81/18 = 81 × 5/18 × 5 = 405/90 - Add the two like fractions:
189/90 + 405/90 = 189 + 405/90 = 594/90 - 594/90 simplified gives 33/5
- So, 63/30 + 81/18 = 33/5
In mixed form: 63/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/60+81/18 63/30+81/36 63/90+81/18 63/30+81/54 63/30+81/90