Add 9/21 and 12/75
9/21 + 12/75 is 103/175.
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,
9/21 = 9 × 25/21 × 25 = 225/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
12/75 = 12 × 7/75 × 7 = 84/525 - Add the two like fractions:
225/525 + 84/525 = 225 + 84/525 = 309/525 - 309/525 simplified gives 103/175
- So, 9/21 + 12/75 = 103/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21+12/75 9/21+24/75 9/42+12/75 27/21+12/75 9/21+36/75 9/63+12/75 45/21+12/75 9/21+60/75 63/21+12/75 9/21+84/75