Add 56/18 and 72/30
1st number: 3 2/18, 2nd number: 2 12/30
56/18 + 72/30 is 248/45.
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,
56/18 = 56 × 5/18 × 5 = 280/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
72/30 = 72 × 3/30 × 3 = 216/90 - Add the two like fractions:
280/90 + 216/90 = 280 + 216/90 = 496/90 - 496/90 simplified gives 248/45
- So, 56/18 + 72/30 = 248/45
In mixed form: 523/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/36+72/30 56/18+72/60 56/54+72/30 56/18+72/90 56/90+72/30