Add 9/30 and 15/8
1st number: 9/30, 2nd number: 1 7/8
9/30 + 15/8 is 87/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
9/30 = 9 × 4/30 × 4 = 36/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
15/8 = 15 × 15/8 × 15 = 225/120 - Add the two like fractions:
36/120 + 225/120 = 36 + 225/120 = 261/120 - 261/120 simplified gives 87/40
- So, 9/30 + 15/8 = 87/40
In mixed form: 27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+15/8 9/30+30/8 9/60+15/8 9/30+15/16 27/30+15/8 9/30+45/8 9/90+15/8 9/30+15/24 45/30+15/8 9/30+75/8 9/30+15/40 63/30+15/8 9/30+15/56