Add 70/42 and 84/9
1st number: 1 28/42, 2nd number: 9 3/9
70/42 + 84/9 is 11/1.
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,
70/42 = 70 × 3/42 × 3 = 210/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
84/9 = 84 × 14/9 × 14 = 1176/126 - Add the two like fractions:
210/126 + 1176/126 = 210 + 1176/126 = 1386/126 - 1386/126 simplified gives 11/1
- So, 70/42 + 84/9 = 11/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84+84/9 70/42+84/18 70/42+84/27 70/42+84/45 70/42+84/63