Add 63/25 and 18/21
1st number: 2 13/25, 2nd number: 18/21
63/25 + 18/21 is 591/175.
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,
63/25 = 63 × 21/25 × 21 = 1323/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
18/21 = 18 × 25/21 × 25 = 450/525 - Add the two like fractions:
1323/525 + 450/525 = 1323 + 450/525 = 1773/525 - 1773/525 simplified gives 591/175
- So, 63/25 + 18/21 = 591/175
In mixed form: 366/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/25+36/21 63/50+18/21 63/25+18/42 63/25+54/21 63/75+18/21 63/25+18/63 63/25+90/21