To find the weight of 9 bags of rice, you can simply multiply the weight of one bag by the number of bags.
- Weight of one bag: \( 13 \frac{1}{2} \) kg
First, convert \( 13 \frac{1}{2} \) kg into an improper fraction:
\[ 13 \frac{1}{2} = 13 + \frac{1}{2} = \frac{26}{2} + \frac{1}{2} = \frac{27}{2} \text{ kg} \]
- Multiply by the number of bags:
The weight of 9 bags is calculated as follows:
\[ \text{Weight of 9 bags} = 9 \times \left( \frac{27}{2} \right) \]
- Calculate the multiplication:
\[ 9 \times \frac{27}{2} = \frac{9 \times 27}{2} = \frac{243}{2} \text{ kg} \]
- Convert the improper fraction back to a mixed number:
To convert \( \frac{243}{2} \) into a mixed number, divide 243 by 2:
\[ 243 \div 2 = 121 \text{ remainder } 1 \]
This can be expressed as:
\[ 121 \frac{1}{2} \text{ kg} \]
Thus, the weight of 9 bags of rice is:
\[ \text{Weight of 9 bags} = 121 \frac{1}{2} \text{ kg} \]
Final Answer: The weight of 9 bags of rice is \( 121 \frac{1}{2} \) kg.