Add 20/90 and 2/4
20/90 + 2/4 is 13/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
20/90 = 20 × 2/90 × 2 = 40/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
2/4 = 2 × 45/4 × 45 = 90/180 - Add the two like fractions:
40/180 + 90/180 = 40 + 90/180 = 130/180 - 130/180 simplified gives 13/18
- So, 20/90 + 2/4 = 13/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/90+2/4 20/90+2/8 60/90+2/4 20/90+6/4 20/90+2/12 20/90+10/4 20/90+2/20 20/90+14/4 20/90+2/28