Add 90/15 and 9/70
1st number: 6 0/15, 2nd number: 9/70
90/15 + 9/70 is 429/70.
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,
90/15 = 90 × 14/15 × 14 = 1260/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
9/70 = 9 × 3/70 × 3 = 27/210 - Add the two like fractions:
1260/210 + 27/210 = 1260 + 27/210 = 1287/210 - 1287/210 simplified gives 429/70
- So, 90/15 + 9/70 = 429/70
In mixed form: 69/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+18/70 90/30+9/70 90/15+27/70 90/45+9/70 90/15+45/70 90/75+9/70 90/15+63/70