Add 2/8 and 9/90
2/8 + 9/90 is 7/20.
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,
2/8 = 2 × 45/8 × 45 = 90/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
9/90 = 9 × 4/90 × 4 = 36/360 - Add the two like fractions:
90/360 + 36/360 = 90 + 36/360 = 126/360 - 126/360 simplified gives 7/20
- So, 2/8 + 9/90 = 7/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8+9/90 2/8+18/90 2/16+9/90 6/8+9/90 2/8+27/90 2/24+9/90 10/8+9/90 2/8+45/90 2/40+9/90 14/8+9/90 2/8+63/90 2/56+9/90