Add 7/90 and 18/60
7/90 + 18/60 is 17/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
7/90 = 7 × 2/90 × 2 = 14/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
18/60 = 18 × 3/60 × 3 = 54/180 - Add the two like fractions:
14/180 + 54/180 = 14 + 54/180 = 68/180 - 68/180 simplified gives 17/45
- So, 7/90 + 18/60 = 17/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+18/60 7/90+36/60 21/90+18/60 7/90+54/60 35/90+18/60 7/90+90/60 49/90+18/60