Add 16/25 and 3/21
16/25 + 3/21 is 137/175.
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,
16/25 = 16 × 21/25 × 21 = 336/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
3/21 = 3 × 25/21 × 25 = 75/525 - Add the two like fractions:
336/525 + 75/525 = 336 + 75/525 = 411/525 - 411/525 simplified gives 137/175
- So, 16/25 + 3/21 = 137/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/25+3/21 16/25+6/21 16/50+3/21 16/25+3/42 48/25+3/21 16/25+9/21 16/75+3/21 16/25+3/63 80/25+3/21 16/25+15/21