Add 7/8 and 15/54
7/8 + 15/54 is 83/72.
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,
7/8 = 7 × 27/8 × 27 = 189/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
15/54 = 15 × 4/54 × 4 = 60/216 - Add the two like fractions:
189/216 + 60/216 = 189 + 60/216 = 249/216 - 249/216 simplified gives 83/72
- So, 7/8 + 15/54 = 83/72
In mixed form: 111/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+15/54 7/8+30/54 7/16+15/54 21/8+15/54 7/8+45/54 7/24+15/54 35/8+15/54 7/8+75/54 7/40+15/54 49/8+15/54 7/56+15/54