Add 3/42 and 70/15
1st number: 3/42, 2nd number: 4 10/15
3/42 + 70/15 is 199/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
3/42 = 3 × 5/42 × 5 = 15/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
70/15 = 70 × 14/15 × 14 = 980/210 - Add the two like fractions:
15/210 + 980/210 = 15 + 980/210 = 995/210 - 995/210 simplified gives 199/42
- So, 3/42 + 70/15 = 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: 6/42+70/15 3/84+70/15 3/42+70/30 9/42+70/15 3/42+70/45 15/42+70/15 3/42+70/75 21/42+70/15