Add 18/8 and 75/30
1st number: 2 2/8, 2nd number: 2 15/30
18/8 + 75/30 is 19/4.
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,
18/8 = 18 × 15/8 × 15 = 270/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
75/30 = 75 × 4/30 × 4 = 300/120 - Add the two like fractions:
270/120 + 300/120 = 270 + 300/120 = 570/120 - 570/120 simplified gives 19/4
- So, 18/8 + 75/30 = 19/4
In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8+75/30 18/16+75/30 18/8+75/60 54/8+75/30 18/24+75/30 18/8+75/90 90/8+75/30 18/40+75/30 18/56+75/30