Add 3/8 and 9/90
3/8 + 9/90 is 19/40.
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,
3/8 = 3 × 45/8 × 45 = 135/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
9/90 = 9 × 4/90 × 4 = 36/360 - Add the two like fractions:
135/360 + 36/360 = 135 + 36/360 = 171/360 - 171/360 simplified gives 19/40
- So, 3/8 + 9/90 = 19/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/8+9/90 3/8+18/90 3/16+9/90 9/8+9/90 3/8+27/90 3/24+9/90 15/8+9/90 3/8+45/90 3/40+9/90 21/8+9/90 3/8+63/90 3/56+9/90