Add 20/9 and 72/64
1st number: 2 2/9, 2nd number: 1 8/64
20/9 + 72/64 is 241/72.
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,
72/64 = 72 × 9/64 × 9 = 648/576 - Add the two like fractions:
1280/576 + 648/576 = 1280 + 648/576 = 1928/576 - 1928/576 simplified gives 241/72
- So, 20/9 + 72/64 = 241/72
In mixed form: 325/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+72/64 20/18+72/64 60/9+72/64 20/27+72/64 20/45+72/64 20/63+72/64