Add 45/64 and 7/9
45/64 + 7/9 is 853/576.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 9 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 64 × 9 = 576,
45/64 = 45 × 9/64 × 9 = 405/576 - Likewise, for the 2nd fraction, since 9 × 64 = 576,
7/9 = 7 × 64/9 × 64 = 448/576 - Add the two like fractions:
405/576 + 448/576 = 405 + 448/576 = 853/576 - So, 45/64 + 7/9 = 853/576
In mixed form: 1277/576
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/64+7/9 45/64+14/9 45/64+7/18 45/64+21/9 45/64+7/27 45/64+35/9 45/64+7/45 45/64+49/9 45/64+7/63