Add 70/14 and 42/15
1st number: 5 0/14, 2nd number: 2 12/15
70/14 + 42/15 is 39/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
70/14 = 70 × 15/14 × 15 = 1050/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
42/15 = 42 × 14/15 × 14 = 588/210 - Add the two like fractions:
1050/210 + 588/210 = 1050 + 588/210 = 1638/210 - 1638/210 simplified gives 39/5
- So, 70/14 + 42/15 = 39/5
In mixed form: 74/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/14+84/15 70/28+42/15 70/14+42/30 70/42+42/15 70/14+42/45 70/14+42/75 70/98+42/15