Add 49/21 and 4/15
1st number: 2 7/21, 2nd number: 4/15
49/21 + 4/15 is 13/5.
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,
49/21 = 49 × 5/21 × 5 = 245/105 - Likewise, for the 2nd fraction, since 15 × 7 = 105,
4/15 = 4 × 7/15 × 7 = 28/105 - Add the two like fractions:
245/105 + 28/105 = 245 + 28/105 = 273/105 - 273/105 simplified gives 13/5
- So, 49/21 + 4/15 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+4/15 49/21+8/15 49/42+4/15 49/21+4/30 49/21+12/15 49/63+4/15 49/21+4/45 49/21+20/15 49/21+4/75 49/21+28/15