Add 4/90 and 8/45
4/90 + 8/45 is 2/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
8/45 = 8 × 2/45 × 2 = 16/90 - Add the two like fractions:
4/90 + 16/90 = 4 + 16/90 = 20/90 - 20/90 simplified gives 2/9
- So, 4/90 + 8/45 = 2/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90+8/45 4/90+16/45 4/90+8/90 12/90+8/45 4/90+24/45 20/90+8/45 4/90+40/45 28/90+8/45 4/90+56/45