Add 90/9 and 54/8
1st number: 10 0/9, 2nd number: 6 6/8
90/9 + 54/8 is 67/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
90/9 = 90 × 8/9 × 8 = 720/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
54/8 = 54 × 9/8 × 9 = 486/72 - Add the two like fractions:
720/72 + 486/72 = 720 + 486/72 = 1206/72 - 1206/72 simplified gives 67/4
- So, 90/9 + 54/8 = 67/4
In mixed form: 163/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+54/8 90/9+54/16 90/27+54/8 90/9+54/24 90/45+54/8 90/9+54/40 90/63+54/8 90/9+54/56