The fraction which is not equal to \(\tfrac{4}{5}\) is
\(\tfrac{40}{50}\)
\(\tfrac{12}{15}\)
\(\tfrac{16}{20}\)
\(\tfrac{9}{15}\)
Step 1: Fractions equal to ( frac{4}{5}) will simplify to ( frac{4}{5}).
Step 2: Reduce each option to simplest form.
Option A: ( frac{40}{50})
Divide top and bottom by (10).
( frac{40 div 10}{50 div 10}= frac{4}{5})
Option B: ( frac{12}{15})
Divide top and bottom by (3).
( frac{12 div 3}{15 div 3}= frac{4}{5})
Option C: ( frac{16}{20})
Divide top and bottom by (4).
( frac{16 div 4}{20 div 4}= frac{4}{5})
Option D: ( frac{9}{15})
Divide top and bottom by (3).
( frac{9 div 3}{15 div 3}= frac{3}{5})
Step 3: Only ( frac{3}{5}) is different from ( frac{4}{5}).
Answer: ( frac{9}{15}) is not equal to ( frac{4}{5}).
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