Add 54/9 and 70/42
1st number: 6 0/9, 2nd number: 1 28/42
54/9 + 70/42 is 23/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
54/9 = 54 × 14/9 × 14 = 756/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
70/42 = 70 × 3/42 × 3 = 210/126 - Add the two like fractions:
756/126 + 210/126 = 756 + 210/126 = 966/126 - 966/126 simplified gives 23/3
- So, 54/9 + 70/42 = 23/3
In mixed form: 72/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+70/42 54/9+70/84 54/27+70/42 54/45+70/42 54/63+70/42