Add 90/14 and 21/9
1st number: 6 6/14, 2nd number: 2 3/9
90/14 + 21/9 is 184/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
90/14 = 90 × 9/14 × 9 = 810/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
21/9 = 21 × 14/9 × 14 = 294/126 - Add the two like fractions:
810/126 + 294/126 = 810 + 294/126 = 1104/126 - 1104/126 simplified gives 184/21
- So, 90/14 + 21/9 = 184/21
In mixed form: 816/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14+42/9 90/28+21/9 90/14+21/18 90/14+63/9 90/42+21/9 90/14+21/27 90/70+21/9 90/14+21/45 90/98+21/9 90/14+21/63