c) $\frac{5}{9} \times \frac{5}{10} \times \frac{9}{5}$
d) $3 \frac{3}{11} \times 33$

Answer

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Answer

Convert the result back to a mixed number: $\frac{1188}{11}$ = $\boxed{108}$

Steps

Step 1 ：For question c, multiply the fractions: $\frac{5}{9} \times \frac{5}{10} \times \frac{9}{5}$ = $\frac{225}{450}$

Step 2 ：Simplify the fraction: $\frac{225}{450}$ = $\boxed{\frac{1}{2}}$

Step 3 ：For question d, convert the mixed number to an improper fraction: $3 \frac{3}{11}$ = $\frac{36}{11}$

Step 4 ：Multiply the improper fraction by the whole number: $\frac{36}{11} \times 33$ = $\frac{1188}{11}$

Step 5 ：Convert the result back to a mixed number: $\frac{1188}{11}$ = $\boxed{108}$