Add 28/21 and 4/75
1st number: 1 7/21, 2nd number: 4/75
28/21 + 4/75 is 104/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
28/21 = 28 × 25/21 × 25 = 700/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
4/75 = 4 × 7/75 × 7 = 28/525 - Add the two like fractions:
700/525 + 28/525 = 700 + 28/525 = 728/525 - 728/525 simplified gives 104/75
- So, 28/21 + 4/75 = 104/75
In mixed form: 129/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21+4/75 28/21+8/75 28/42+4/75 84/21+4/75 28/21+12/75 28/63+4/75 28/21+20/75 28/21+28/75