Add 42/75 and 12/9
1st number: 42/75, 2nd number: 1 3/9
42/75 + 12/9 is 142/75.
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,
42/75 = 42 × 3/75 × 3 = 126/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
12/9 = 12 × 25/9 × 25 = 300/225 - Add the two like fractions:
126/225 + 300/225 = 126 + 300/225 = 426/225 - 426/225 simplified gives 142/75
- So, 42/75 + 12/9 = 142/75
In mixed form: 167/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75+12/9 42/75+24/9 42/75+12/18 42/75+36/9 42/75+12/27 42/75+60/9 42/75+12/45 42/75+84/9 42/75+12/63