Add 9/8 and 90/80
1st number: 1 1/8, 2nd number: 1 10/80
9/8 + 90/80 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
9/8 = 9 × 10/8 × 10 = 90/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
90/80 = 90 × 1/80 × 1 = 90/80 - Add the two like fractions:
90/80 + 90/80 = 90 + 90/80 = 180/80 - 180/80 simplified gives 9/4
- So, 9/8 + 90/80 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/8+90/80 9/16+90/80 27/8+90/80 9/24+90/80 45/8+90/80 9/40+90/80 63/8+90/80 9/56+90/80