Add 21/90 and 1/27
21/90 + 1/27 is 73/270.
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,
21/90 = 21 × 3/90 × 3 = 63/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
1/27 = 1 × 10/27 × 10 = 10/270 - Add the two like fractions:
63/270 + 10/270 = 63 + 10/270 = 73/270 - So, 21/90 + 1/27 = 73/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/90+1/27 21/90+2/27 21/90+1/54 63/90+1/27 21/90+3/27 21/90+1/81 21/90+5/27 21/90+7/27