Add 8/70 and 84/15
1st number: 8/70, 2nd number: 5 9/15
8/70 + 84/15 is 40/7.
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,
8/70 = 8 × 3/70 × 3 = 24/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
84/15 = 84 × 14/15 × 14 = 1176/210 - Add the two like fractions:
24/210 + 1176/210 = 24 + 1176/210 = 1200/210 - 1200/210 simplified gives 40/7
- So, 8/70 + 84/15 = 40/7
In mixed form: 55/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/70+84/15 8/70+84/30 24/70+84/15 8/70+84/45 40/70+84/15 8/70+84/75 56/70+84/15