Add 14/6 and 90/21
1st number: 2 2/6, 2nd number: 4 6/21
14/6 + 90/21 is 139/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
14/6 = 14 × 7/6 × 7 = 98/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
90/21 = 90 × 2/21 × 2 = 180/42 - Add the two like fractions:
98/42 + 180/42 = 98 + 180/42 = 278/42 - 278/42 simplified gives 139/21
- So, 14/6 + 90/21 = 139/21
In mixed form: 613/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/6+90/21 14/12+90/21 14/6+90/42 42/6+90/21 14/18+90/21 14/6+90/63 70/6+90/21 14/30+90/21 98/6+90/21 14/42+90/21