Add 14/2 and 21/90
1st number: 7 0/2, 2nd number: 21/90
14/2 + 21/90 is 217/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
14/2 = 14 × 45/2 × 45 = 630/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
630/90 + 21/90 = 630 + 21/90 = 651/90 - 651/90 simplified gives 217/30
- So, 14/2 + 21/90 = 217/30
In mixed form: 77/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/2+21/90 14/2+42/90 14/4+21/90 42/2+21/90 14/2+63/90 14/6+21/90 70/2+21/90 14/10+21/90 98/2+21/90