Add 70/15 and 3/42
1st number: 4 10/15, 2nd number: 3/42
70/15 + 3/42 is 199/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
70/15 = 70 × 14/15 × 14 = 980/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
3/42 = 3 × 5/42 × 5 = 15/210 - Add the two like fractions:
980/210 + 15/210 = 980 + 15/210 = 995/210 - 995/210 simplified gives 199/42
- So, 70/15 + 3/42 = 199/42
In mixed form: 431/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+6/42 70/30+3/42 70/15+3/84 70/15+9/42 70/45+3/42 70/15+15/42 70/75+3/42 70/15+21/42