Add 64/8 and 42/72
1st number: 8 0/8, 2nd number: 42/72
64/8 + 42/72 is 103/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
64/8 = 64 × 9/8 × 9 = 576/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Add the two like fractions:
576/72 + 42/72 = 576 + 42/72 = 618/72 - 618/72 simplified gives 103/12
- So, 64/8 + 42/72 = 103/12
In mixed form: 87/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/8+84/72 64/16+42/72 64/24+42/72 64/40+42/72 64/56+42/72