Add 12/42 and 10/9
1st number: 12/42, 2nd number: 1 1/9
12/42 + 10/9 is 88/63.
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,
10/9 = 10 × 14/9 × 14 = 140/126 - Add the two like fractions:
36/126 + 140/126 = 36 + 140/126 = 176/126 - 176/126 simplified gives 88/63
- So, 12/42 + 10/9 = 88/63
In mixed form: 125/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+10/9 12/42+20/9 12/84+10/9 12/42+10/18 36/42+10/9 12/42+30/9 12/42+10/27 60/42+10/9 12/42+50/9 12/42+10/45 84/42+10/9 12/42+70/9 12/42+10/63