Add 70/42 and 36/18
1st number: 1 28/42, 2nd number: 2 0/18
70/42 + 36/18 is 11/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 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 18 × 7 = 126,
36/18 = 36 × 7/18 × 7 = 252/126 - Add the two like fractions:
210/126 + 252/126 = 210 + 252/126 = 462/126 - 462/126 simplified gives 11/3
- So, 70/42 + 36/18 = 11/3
In mixed form: 32/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+72/18 70/84+36/18 70/42+36/54 70/42+36/90