Add 9/8 and 3/90
1st number: 1 1/8, 2nd number: 3/90
9/8 + 3/90 is 139/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
9/8 = 9 × 45/8 × 45 = 405/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
3/90 = 3 × 4/90 × 4 = 12/360 - Add the two like fractions:
405/360 + 12/360 = 405 + 12/360 = 417/360 - 417/360 simplified gives 139/120
- So, 9/8 + 3/90 = 139/120
In mixed form: 119/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/8+3/90 9/8+6/90 9/16+3/90 27/8+3/90 9/8+9/90 9/24+3/90 45/8+3/90 9/8+15/90 9/40+3/90 63/8+3/90 9/8+21/90 9/56+3/90