Add 81/35 and 12/70
1st number: 2 11/35, 2nd number: 12/70
81/35 + 12/70 is 87/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
81/35 = 81 × 2/35 × 2 = 162/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
12/70 = 12 × 1/70 × 1 = 12/70 - Add the two like fractions:
162/70 + 12/70 = 162 + 12/70 = 174/70 - 174/70 simplified gives 87/35
- So, 81/35 + 12/70 = 87/35
In mixed form: 217/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/35+24/70 81/70+12/70 81/35+36/70 81/35+60/70 81/35+84/70