Add 75/21 and 7/25
1st number: 3 12/21, 2nd number: 7/25
75/21 + 7/25 is 674/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 25 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
75/21 = 75 × 25/21 × 25 = 1875/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
7/25 = 7 × 21/25 × 21 = 147/525 - Add the two like fractions:
1875/525 + 147/525 = 1875 + 147/525 = 2022/525 - 2022/525 simplified gives 674/175
- So, 75/21 + 7/25 = 674/175
In mixed form: 3149/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/21+14/25 75/42+7/25 75/21+7/50 75/21+21/25 75/63+7/25 75/21+7/75 75/21+35/25 75/21+49/25