Add 72/75 and 42/9
1st number: 72/75, 2nd number: 4 6/9
72/75 + 42/9 is 422/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
72/75 = 72 × 3/75 × 3 = 216/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
42/9 = 42 × 25/9 × 25 = 1050/225 - Add the two like fractions:
216/225 + 1050/225 = 216 + 1050/225 = 1266/225 - 1266/225 simplified gives 422/75
- So, 72/75 + 42/9 = 422/75
In mixed form: 547/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/75+84/9 72/75+42/18 72/75+42/27 72/75+42/45 72/75+42/63