Add 20/8 and 27/30
1st number: 2 4/8, 2nd number: 27/30
20/8 + 27/30 is 17/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
20/8 = 20 × 15/8 × 15 = 300/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
27/30 = 27 × 4/30 × 4 = 108/120 - Add the two like fractions:
300/120 + 108/120 = 300 + 108/120 = 408/120 - 408/120 simplified gives 17/5
- So, 20/8 + 27/30 = 17/5
In mixed form: 32/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8+27/30 20/8+54/30 20/16+27/30 20/8+27/60 60/8+27/30 20/8+81/30 20/24+27/30 20/8+27/90 20/40+27/30 20/56+27/30