Add 20/9 and 18/64
1st number: 2 2/9, 2nd number: 18/64
20/9 + 18/64 is 721/288.
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,
20/9 = 20 × 64/9 × 64 = 1280/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
18/64 = 18 × 9/64 × 9 = 162/576 - Add the two like fractions:
1280/576 + 162/576 = 1280 + 162/576 = 1442/576 - 1442/576 simplified gives 721/288
- So, 20/9 + 18/64 = 721/288
In mixed form: 2145/288
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+18/64 20/9+36/64 20/18+18/64 60/9+18/64 20/9+54/64 20/27+18/64 20/9+90/64 20/45+18/64 20/63+18/64