Add 7/42 and 80/9
1st number: 7/42, 2nd number: 8 8/9
7/42 + 80/9 is 163/18.
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,
7/42 = 7 × 3/42 × 3 = 21/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
80/9 = 80 × 14/9 × 14 = 1120/126 - Add the two like fractions:
21/126 + 1120/126 = 21 + 1120/126 = 1141/126 - 1141/126 simplified gives 163/18
- So, 7/42 + 80/9 = 163/18
In mixed form: 91/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+80/9 7/84+80/9 7/42+80/18 21/42+80/9 7/42+80/27 35/42+80/9 7/42+80/45 49/42+80/9 7/42+80/63