Add 48/15 and 25/21
1st number: 3 3/15, 2nd number: 1 4/21
48/15 + 25/21 is 461/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
48/15 = 48 × 7/15 × 7 = 336/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
25/21 = 25 × 5/21 × 5 = 125/105 - Add the two like fractions:
336/105 + 125/105 = 336 + 125/105 = 461/105 - So, 48/15 + 25/21 = 461/105
In mixed form: 441/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/15+25/21 48/15+50/21 48/30+25/21 48/15+25/42 48/15+75/21 48/45+25/21 48/15+25/63 48/75+25/21