Add 30/25 and 12/21
1st number: 1 5/25, 2nd number: 12/21
30/25 + 12/21 is 62/35.
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,
30/25 = 30 × 21/25 × 21 = 630/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
12/21 = 12 × 25/21 × 25 = 300/525 - Add the two like fractions:
630/525 + 300/525 = 630 + 300/525 = 930/525 - 930/525 simplified gives 62/35
- So, 30/25 + 12/21 = 62/35
In mixed form: 127/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/25+12/21 30/25+24/21 30/50+12/21 30/25+12/42 90/25+12/21 30/25+36/21 30/75+12/21 30/25+12/63 30/25+60/21 30/25+84/21