Add 81/15 and 3/70
1st number: 5 6/15, 2nd number: 3/70
81/15 + 3/70 is 381/70.
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,
81/15 = 81 × 14/15 × 14 = 1134/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Add the two like fractions:
1134/210 + 9/210 = 1134 + 9/210 = 1143/210 - 1143/210 simplified gives 381/70
- So, 81/15 + 3/70 = 381/70
In mixed form: 531/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/15+6/70 81/30+3/70 81/15+9/70 81/45+3/70 81/15+15/70 81/75+3/70 81/15+21/70