1. Problem: Find the product of $72 \times \frac{5}{12}$. Formula: Multiply the whole number by the numerator and then divide by the denominator. Step 1: Multiply numerator and whole number: $72 \times 5 = 360$. Step 2: Divide by denominator: $$\frac{360}{12} = 30$$. Answer: $30$. 2. Problem: Find the product of $35 \times \frac{2}{5}$. Step 1: Multiply numerator and whole number: $35 \times 2 = 70$. Step 2: Divide by denominator: $$\frac{70}{5} = 14$$. Answer: $14$. 3. Problem: Find the product of $12 \times \frac{3}{4}$. Step 1: Multiply numerator and whole number: $12 \times 3 = 36$. Step 2: Divide by denominator: $$\frac{36}{4} = 9$$. Answer: $9$. 4. Problem: Find the product of $13 \times \frac{2}{3}$. Step 1: Multiply numerator and whole number: $13 \times 2 = 26$. Step 2: Divide by denominator: $$\frac{26}{3} = 8\frac{2}{3}$$ or approximately $8.67$. Answer: $8\frac{2}{3}$. 5. Problem: Find the product of $70 \times \frac{9}{10}$. Step 1: Multiply numerator and whole number: $70 \times 9 = 630$. Step 2: Divide by denominator: $$\frac{630}{10} = 63$$. Answer: $63$. 6. Problem: Find the product of $81 \times \frac{2}{9}$. Step 1: Multiply numerator and whole number: $81 \times 2 = 162$. Step 2: Divide by denominator: $$\frac{162}{9} = 18$$. Answer: $18$. 7. Problem: Find the product of $57 \times \frac{2}{3}$. Step 1: Multiply numerator and whole number: $57 \times 2 = 114$. Step 2: Divide by denominator: $$\frac{114}{3} = 38$$. Answer: $38$. 8. Problem: Find the product of $600 \times \frac{3}{10}$. Step 1: Multiply numerator and whole number: $600 \times 3 = 1800$. Step 2: Divide by denominator: $$\frac{1800}{10} = 180$$. Answer: $180$. 9. Problem: Find the product of $16 \times \frac{3}{5}$. Step 1: Multiply numerator and whole number: $16 \times 3 = 48$. Step 2: Divide by denominator: $$\frac{48}{5} = 9\frac{3}{5}$$ or $9.6$. Answer: $9\frac{3}{5}$. 10. Problem: Find the product of $400 \times \frac{1}{4}$. Step 1: Multiply numerator and whole number: $400 \times 1 = 400$. Step 2: Divide by denominator: $$\frac{400}{4} = 100$$. Answer: $100$. 11. Problem: Find the product of $48 \times \frac{5}{6}$. Step 1: Multiply numerator and whole number: $48 \times 5 = 240$. Step 2: Divide by denominator: $$\frac{240}{6} = 40$$. Answer: $40$.