Add 7/90 and 10/18
7/90 + 10/18 is 19/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
10/18 = 10 × 5/18 × 5 = 50/90 - Add the two like fractions:
7/90 + 50/90 = 7 + 50/90 = 57/90 - 57/90 simplified gives 19/30
- So, 7/90 + 10/18 = 19/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+10/18 7/90+20/18 7/90+10/36 21/90+10/18 7/90+30/18 7/90+10/54 35/90+10/18 7/90+50/18 7/90+10/90 49/90+10/18 7/90+70/18