Add 9/42 and 90/9
1st number: 9/42, 2nd number: 10 0/9
9/42 + 90/9 is 143/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
9/42 = 9 × 3/42 × 3 = 27/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
90/9 = 90 × 14/9 × 14 = 1260/126 - Add the two like fractions:
27/126 + 1260/126 = 27 + 1260/126 = 1287/126 - 1287/126 simplified gives 143/14
- So, 9/42 + 90/9 = 143/14
In mixed form: 103/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42+90/9 9/84+90/9 9/42+90/18 27/42+90/9 9/42+90/27 45/42+90/9 9/42+90/45 63/42+90/9 9/42+90/63