Add 2/30 and 21/8
1st number: 2/30, 2nd number: 2 5/8
2/30 + 21/8 is 323/120.
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,
2/30 = 2 × 4/30 × 4 = 8/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
21/8 = 21 × 15/8 × 15 = 315/120 - Add the two like fractions:
8/120 + 315/120 = 8 + 315/120 = 323/120 - So, 2/30 + 21/8 = 323/120
In mixed form: 283/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/30+21/8 2/30+42/8 2/60+21/8 2/30+21/16 6/30+21/8 2/30+63/8 2/90+21/8 2/30+21/24 10/30+21/8 2/30+21/40 14/30+21/8 2/30+21/56