Add 15/8 and 3/90
1st number: 1 7/8, 2nd number: 3/90
15/8 + 3/90 is 229/120.
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,
15/8 = 15 × 45/8 × 45 = 675/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
3/90 = 3 × 4/90 × 4 = 12/360 - Add the two like fractions:
675/360 + 12/360 = 675 + 12/360 = 687/360 - 687/360 simplified gives 229/120
- So, 15/8 + 3/90 = 229/120
In mixed form: 1109/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8+3/90 15/8+6/90 15/16+3/90 45/8+3/90 15/8+9/90 15/24+3/90 75/8+3/90 15/8+15/90 15/40+3/90 15/8+21/90 15/56+3/90