Add 90/9 and 20/64
1st number: 10 0/9, 2nd number: 20/64
90/9 + 20/64 is 165/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 64 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 9 × 64 = 576,
90/9 = 90 × 64/9 × 64 = 5760/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
20/64 = 20 × 9/64 × 9 = 180/576 - Add the two like fractions:
5760/576 + 180/576 = 5760 + 180/576 = 5940/576 - 5940/576 simplified gives 165/16
- So, 90/9 + 20/64 = 165/16
In mixed form: 105/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9+40/64 90/18+20/64 90/9+60/64 90/27+20/64 90/45+20/64 90/63+20/64