Add 36/21 and 14/15
1st number: 1 15/21, 2nd number: 14/15
36/21 + 14/15 is 278/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 15 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
36/21 = 36 × 5/21 × 5 = 180/105 - Likewise, for the 2nd fraction, since 15 × 7 = 105,
14/15 = 14 × 7/15 × 7 = 98/105 - Add the two like fractions:
180/105 + 98/105 = 180 + 98/105 = 278/105 - So, 36/21 + 14/15 = 278/105
In mixed form: 268/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21+14/15 36/21+28/15 36/42+14/15 36/21+14/30 36/21+42/15 36/63+14/15 36/21+14/45 36/21+70/15 36/21+14/75 36/21+98/15