Add 15/8 and 30/54
1st number: 1 7/8, 2nd number: 30/54
15/8 + 30/54 is 175/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
15/8 = 15 × 27/8 × 27 = 405/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
30/54 = 30 × 4/54 × 4 = 120/216 - Add the two like fractions:
405/216 + 120/216 = 405 + 120/216 = 525/216 - 525/216 simplified gives 175/72
- So, 15/8 + 30/54 = 175/72
In mixed form: 231/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8+30/54 15/8+60/54 15/16+30/54 45/8+30/54 15/8+90/54 15/24+30/54 75/8+30/54 15/40+30/54 15/56+30/54