Add 7/90 and 20/27
7/90 + 20/27 is 221/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
7/90 = 7 × 3/90 × 3 = 21/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
20/27 = 20 × 10/27 × 10 = 200/270 - Add the two like fractions:
21/270 + 200/270 = 21 + 200/270 = 221/270 - So, 7/90 + 20/27 = 221/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+20/27 7/90+40/27 7/90+20/54 21/90+20/27 7/90+60/27 7/90+20/81 35/90+20/27 49/90+20/27