Add 10/18 and 72/30
1st number: 10/18, 2nd number: 2 12/30
10/18 + 72/30 is 133/45.
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,
10/18 = 10 × 5/18 × 5 = 50/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
72/30 = 72 × 3/30 × 3 = 216/90 - Add the two like fractions:
50/90 + 216/90 = 50 + 216/90 = 266/90 - 266/90 simplified gives 133/45
- So, 10/18 + 72/30 = 133/45
In mixed form: 243/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18+72/30 10/36+72/30 10/18+72/60 30/18+72/30 10/54+72/30 10/18+72/90 50/18+72/30 10/90+72/30 70/18+72/30