Add 8/45 and 1/90
8/45 + 1/90 is 17/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
8/45 = 8 × 2/45 × 2 = 16/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
1/90 = 1 × 1/90 × 1 = 1/90 - Add the two like fractions:
16/90 + 1/90 = 16 + 1/90 = 17/90 - So, 8/45 + 1/90 = 17/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45+1/90 8/45+2/90 8/90+1/90 24/45+1/90 8/45+3/90 40/45+1/90 8/45+5/90 56/45+1/90 8/45+7/90