Add 84/15 and 35/70
1st number: 5 9/15, 2nd number: 35/70
84/15 + 35/70 is 61/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
84/15 = 84 × 14/15 × 14 = 1176/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
35/70 = 35 × 3/70 × 3 = 105/210 - Add the two like fractions:
1176/210 + 105/210 = 1176 + 105/210 = 1281/210 - 1281/210 simplified gives 61/10
- So, 84/15 + 35/70 = 61/10
In mixed form: 61/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+35/70 84/45+35/70 84/75+35/70