Add 40/25 and 14/21
1st number: 1 15/25, 2nd number: 14/21
40/25 + 14/21 is 34/15.
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,
40/25 = 40 × 21/25 × 21 = 840/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
14/21 = 14 × 25/21 × 25 = 350/525 - Add the two like fractions:
840/525 + 350/525 = 840 + 350/525 = 1190/525 - 1190/525 simplified gives 34/15
- So, 40/25 + 14/21 = 34/15
In mixed form: 24/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/25+14/21 40/25+28/21 40/50+14/21 40/25+14/42 40/25+42/21 40/75+14/21 40/25+14/63 40/25+70/21 40/25+98/21