Add 1/25 and 75/21
1st number: 1/25, 2nd number: 3 12/21
1/25 + 75/21 is 632/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
1/25 = 1 × 21/25 × 21 = 21/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
75/21 = 75 × 25/21 × 25 = 1875/525 - Add the two like fractions:
21/525 + 1875/525 = 21 + 1875/525 = 1896/525 - 1896/525 simplified gives 632/175
- So, 1/25 + 75/21 = 632/175
In mixed form: 3107/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/25+75/21 1/50+75/21 1/25+75/42 3/25+75/21 1/75+75/21 1/25+75/63 5/25+75/21 7/25+75/21