Add 20/7 and 28/64
1st number: 2 6/7, 2nd number: 28/64
20/7 + 28/64 is 369/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 64 is 448
Next, find the equivalent fraction of both fractional numbers with denominator 448 - For the 1st fraction, since 7 × 64 = 448,
20/7 = 20 × 64/7 × 64 = 1280/448 - Likewise, for the 2nd fraction, since 64 × 7 = 448,
28/64 = 28 × 7/64 × 7 = 196/448 - Add the two like fractions:
1280/448 + 196/448 = 1280 + 196/448 = 1476/448 - 1476/448 simplified gives 369/112
- So, 20/7 + 28/64 = 369/112
In mixed form: 333/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7+28/64 20/7+56/64 20/14+28/64 60/7+28/64 20/7+84/64 20/21+28/64 20/35+28/64 20/49+28/64