Add 80/72 and 9/10
1st number: 1 8/72, 2nd number: 9/10
80/72 + 9/10 is 181/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 10 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
80/72 = 80 × 5/72 × 5 = 400/360 - Likewise, for the 2nd fraction, since 10 × 36 = 360,
9/10 = 9 × 36/10 × 36 = 324/360 - Add the two like fractions:
400/360 + 324/360 = 400 + 324/360 = 724/360 - 724/360 simplified gives 181/90
- So, 80/72 + 9/10 = 181/90
In mixed form: 21/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/72+18/10 80/72+9/20 80/72+27/10 80/72+9/30 80/72+45/10 80/72+9/50 80/72+63/10 80/72+9/70