Which of the following is not equal to the others?
\(\tfrac{6}{8}\)
\(\tfrac{12}{16}\)
\(\tfrac{15}{25}\)
\(\tfrac{18}{24}\)
1) ( frac{6}{8})
Divide top and bottom by (2).
( frac{6 div 2}{8 div 2}= frac{3}{4})
2) ( frac{12}{16})
Divide top and bottom by (4).
( frac{12 div 4}{16 div 4}= frac{3}{4})
3) ( frac{18}{24})
Divide top and bottom by (6).
( frac{18 div 6}{24 div 6}= frac{3}{4})
4) ( frac{15}{25})
Divide top and bottom by (5).
( frac{15 div 5}{25 div 5}= frac{3}{5})
Compare the simplest forms:
( frac{3}{4}) is the same as (0.75).
( frac{3}{5}) is the same as (0.6).
( frac{3}{4} eq frac{3}{5}).
So ( frac{15}{25}) (option C) is not equal to the others.