Add 30/8 and 9/5
1st number: 3 6/8, 2nd number: 1 4/5
30/8 + 9/5 is 111/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
9/5 = 9 × 8/5 × 8 = 72/40 - Add the two like fractions:
150/40 + 72/40 = 150 + 72/40 = 222/40 - 222/40 simplified gives 111/20
- So, 30/8 + 9/5 = 111/20
In mixed form: 511/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+9/5 30/8+18/5 30/16+9/5 30/8+9/10 90/8+9/5 30/8+27/5 30/24+9/5 30/8+9/15 30/8+45/5 30/40+9/5 30/8+9/25 30/8+63/5 30/56+9/5 30/8+9/35