Add 84/7 and 9/30
1st number: 12 0/7, 2nd number: 9/30
84/7 + 9/30 is 123/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
84/7 = 84 × 30/7 × 30 = 2520/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
9/30 = 9 × 7/30 × 7 = 63/210 - Add the two like fractions:
2520/210 + 63/210 = 2520 + 63/210 = 2583/210 - 2583/210 simplified gives 123/10
- So, 84/7 + 9/30 = 123/10
In mixed form: 123/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/7+18/30 84/14+9/30 84/7+9/60 84/7+27/30 84/21+9/30 84/7+9/90 84/7+45/30 84/35+9/30 84/7+63/30 84/49+9/30