Add 3/25 and 84/21
1st number: 3/25, 2nd number: 4 0/21
3/25 + 84/21 is 103/25.
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,
3/25 = 3 × 21/25 × 21 = 63/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
84/21 = 84 × 25/21 × 25 = 2100/525 - Add the two like fractions:
63/525 + 2100/525 = 63 + 2100/525 = 2163/525 - 2163/525 simplified gives 103/25
- So, 3/25 + 84/21 = 103/25
In mixed form: 43/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/25+84/21 3/50+84/21 3/25+84/42 9/25+84/21 3/75+84/21 3/25+84/63 15/25+84/21 21/25+84/21