Add 15/70 and 42/3
1st number: 15/70, 2nd number: 14 0/3
15/70 + 42/3 is 199/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
15/70 = 15 × 3/70 × 3 = 45/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
42/3 = 42 × 70/3 × 70 = 2940/210 - Add the two like fractions:
45/210 + 2940/210 = 45 + 2940/210 = 2985/210 - 2985/210 simplified gives 199/14
- So, 15/70 + 42/3 = 199/14
In mixed form: 143/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70+42/3 15/70+84/3 15/70+42/6 45/70+42/3 15/70+42/9 75/70+42/3 15/70+42/15 15/70+42/21