Add 64/4 and 21/18
1st number: 16 0/4, 2nd number: 1 3/18
64/4 + 21/18 is 103/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
64/4 = 64 × 9/4 × 9 = 576/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
21/18 = 21 × 2/18 × 2 = 42/36 - Add the two like fractions:
576/36 + 42/36 = 576 + 42/36 = 618/36 - 618/36 simplified gives 103/6
- So, 64/4 + 21/18 = 103/6
In mixed form: 171/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/4+42/18 64/8+21/18 64/4+21/36 64/4+63/18 64/12+21/18 64/4+21/54 64/20+21/18 64/4+21/90 64/28+21/18