Add 15/8 and 70/54
1st number: 1 7/8, 2nd number: 1 16/54
15/8 + 70/54 is 685/216.
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,
70/54 = 70 × 4/54 × 4 = 280/216 - Add the two like fractions:
405/216 + 280/216 = 405 + 280/216 = 685/216 - So, 15/8 + 70/54 = 685/216
In mixed form: 337/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8+70/54 15/16+70/54 45/8+70/54 15/24+70/54 75/8+70/54 15/40+70/54 15/56+70/54