Add 5/90 and 30/40
5/90 + 30/40 is 29/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
5/90 = 5 × 4/90 × 4 = 20/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
30/40 = 30 × 9/40 × 9 = 270/360 - Add the two like fractions:
20/360 + 270/360 = 20 + 270/360 = 290/360 - 290/360 simplified gives 29/36
- So, 5/90 + 30/40 = 29/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90+30/40 5/90+60/40 5/90+30/80 15/90+30/40 5/90+90/40 25/90+30/40 35/90+30/40