Add 56/45 and 72/30
1st number: 1 11/45, 2nd number: 2 12/30
56/45 + 72/30 is 164/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
56/45 = 56 × 2/45 × 2 = 112/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
72/30 = 72 × 3/30 × 3 = 216/90 - Add the two like fractions:
112/90 + 216/90 = 112 + 216/90 = 328/90 - 328/90 simplified gives 164/45
- So, 56/45 + 72/30 = 164/45
In mixed form: 329/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90+72/30 56/45+72/60 56/45+72/90