Add 12/42 and 60/9
1st number: 12/42, 2nd number: 6 6/9
12/42 + 60/9 is 146/21.
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,
12/42 = 12 × 3/42 × 3 = 36/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
60/9 = 60 × 14/9 × 14 = 840/126 - Add the two like fractions:
36/126 + 840/126 = 36 + 840/126 = 876/126 - 876/126 simplified gives 146/21
- So, 12/42 + 60/9 = 146/21
In mixed form: 620/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+60/9 12/84+60/9 12/42+60/18 36/42+60/9 12/42+60/27 60/42+60/9 12/42+60/45 84/42+60/9 12/42+60/63