Add 10/80 and 9/8
1st number: 10/80, 2nd number: 1 1/8
10/80 + 9/8 is 5/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 8 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
10/80 = 10 × 1/80 × 1 = 10/80 - Likewise, for the 2nd fraction, since 8 × 10 = 80,
9/8 = 9 × 10/8 × 10 = 90/80 - Add the two like fractions:
10/80 + 90/80 = 10 + 90/80 = 100/80 - 100/80 simplified gives 5/4
- So, 10/80 + 9/8 = 5/4
In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+9/8 10/80+18/8 10/80+9/16 30/80+9/8 10/80+27/8 10/80+9/24 50/80+9/8 10/80+45/8 10/80+9/40 70/80+9/8 10/80+63/8 10/80+9/56