Add 4/70 and 42/15
1st number: 4/70, 2nd number: 2 12/15
4/70 + 42/15 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
4/70 = 4 × 3/70 × 3 = 12/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
42/15 = 42 × 14/15 × 14 = 588/210 - Add the two like fractions:
12/210 + 588/210 = 12 + 588/210 = 600/210 - 600/210 simplified gives 20/7
- So, 4/70 + 42/15 = 20/7
In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70+42/15 4/70+84/15 4/70+42/30 12/70+42/15 4/70+42/45 20/70+42/15 4/70+42/75 28/70+42/15