Add 72/6 and 9/90
1st number: 12 0/6, 2nd number: 9/90
72/6 + 9/90 is 121/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
72/6 = 72 × 15/6 × 15 = 1080/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
9/90 = 9 × 1/90 × 1 = 9/90 - Add the two like fractions:
1080/90 + 9/90 = 1080 + 9/90 = 1089/90 - 1089/90 simplified gives 121/10
- So, 72/6 + 9/90 = 121/10
In mixed form: 121/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/6+18/90 72/12+9/90 72/6+27/90 72/18+9/90 72/6+45/90 72/30+9/90 72/6+63/90 72/42+9/90