Add 4/90 and 6/45
4/90 + 6/45 is 8/45.
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,
6/45 = 6 × 2/45 × 2 = 12/90 - Add the two like fractions:
4/90 + 12/90 = 4 + 12/90 = 16/90 - 16/90 simplified gives 8/45
- So, 4/90 + 6/45 = 8/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90+6/45 4/90+12/45 4/90+6/90 12/90+6/45 4/90+18/45 20/90+6/45 4/90+30/45 28/90+6/45 4/90+42/45