Add 14/90 and 7/20
14/90 + 7/20 is 91/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
14/90 = 14 × 2/90 × 2 = 28/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
7/20 = 7 × 9/20 × 9 = 63/180 - Add the two like fractions:
28/180 + 63/180 = 28 + 63/180 = 91/180 - So, 14/90 + 7/20 = 91/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/90+7/20 14/90+14/20 14/90+7/40 42/90+7/20 14/90+21/20 14/90+7/60 70/90+7/20 14/90+35/20 98/90+7/20 14/90+49/20