Add 14/21 and 90/10
1st number: 14/21, 2nd number: 9 0/10
14/21 + 90/10 is 29/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
90/10 = 90 × 21/10 × 21 = 1890/210 - Add the two like fractions:
140/210 + 1890/210 = 140 + 1890/210 = 2030/210 - 2030/210 simplified gives 29/3
- So, 14/21 + 90/10 = 29/3
In mixed form: 92/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21+90/10 14/42+90/10 14/21+90/20 42/21+90/10 14/63+90/10 14/21+90/30 70/21+90/10 14/21+90/50 98/21+90/10 14/21+90/70