Add 70/15 and 8/42
1st number: 4 10/15, 2nd number: 8/42
70/15 + 8/42 is 34/7.
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,
8/42 = 8 × 5/42 × 5 = 40/210 - Add the two like fractions:
980/210 + 40/210 = 980 + 40/210 = 1020/210 - 1020/210 simplified gives 34/7
- So, 70/15 + 8/42 = 34/7
In mixed form: 46/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+16/42 70/30+8/42 70/15+8/84 70/15+24/42 70/45+8/42 70/15+40/42 70/75+8/42 70/15+56/42