Add 70/42 and 49/30
1st number: 1 28/42, 2nd number: 1 19/30
70/42 + 49/30 is 33/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
49/30 = 49 × 7/30 × 7 = 343/210 - Add the two like fractions:
350/210 + 343/210 = 350 + 343/210 = 693/210 - 693/210 simplified gives 33/10
- So, 70/42 + 49/30 = 33/10
In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+98/30 70/84+49/30 70/42+49/60 70/42+49/90