Add 90/18 and 12/64
1st number: 5 0/18, 2nd number: 12/64
90/18 + 12/64 is 83/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 64 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 18 × 32 = 576,
90/18 = 90 × 32/18 × 32 = 2880/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
12/64 = 12 × 9/64 × 9 = 108/576 - Add the two like fractions:
2880/576 + 108/576 = 2880 + 108/576 = 2988/576 - 2988/576 simplified gives 83/16
- So, 90/18 + 12/64 = 83/16
In mixed form: 53/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+24/64 90/36+12/64 90/18+36/64 90/54+12/64 90/18+60/64 90/18+84/64