Add 14/90 and 21/54
14/90 + 21/54 is 49/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
14/90 = 14 × 3/90 × 3 = 42/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Add the two like fractions:
42/270 + 105/270 = 42 + 105/270 = 147/270 - 147/270 simplified gives 49/90
- So, 14/90 + 21/54 = 49/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/90+21/54 14/90+42/54 42/90+21/54 14/90+63/54 70/90+21/54 98/90+21/54