Add 56/20 and 45/30
1st number: 2 16/20, 2nd number: 1 15/30
56/20 + 45/30 is 43/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
56/20 = 56 × 3/20 × 3 = 168/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
45/30 = 45 × 2/30 × 2 = 90/60 - Add the two like fractions:
168/60 + 90/60 = 168 + 90/60 = 258/60 - 258/60 simplified gives 43/10
- So, 56/20 + 45/30 = 43/10
In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20+90/30 56/40+45/30 56/20+45/60 56/60+45/30 56/20+45/90