Tick $(\square)$ the correct answer.
a. Product of $\frac{7}{9} \times 81$ is
i. 63
ii. 36
iii. 72
Answer (1)
Multiply the fraction by the whole number: 9 7 × 81 .
Simplify the expression: 9 7 × 81 = 7 × 9 .
Calculate the final product: 7 × 9 = 63 .
The correct answer is 63 .
Explanation
Understanding the Problem We are asked to find the product of 9 7 and 81 and then choose the correct answer from the given options.
Calculating the Product To find the product, we multiply the fraction by the whole number: 9 7 × 81 = 9 7 × 81 Since 81 = 9 × 9 , we can simplify the expression: 9 7 × 81 = 9 7 × 9 × 9 = 7 × 9 = 63
Identifying the Correct Answer Now we compare the result, 63, with the given options:i. 63ii. 36iii. 72The correct answer is 63.
Final Answer Therefore, the product of 9 7 × 81 is 63.
Examples
Understanding fractions and multiplication is essential in everyday situations, such as when you're cooking and need to adjust recipe quantities. For instance, if a recipe calls for 3 2 cup of flour and you want to make half the recipe, you would multiply 3 2 by 2 1 to find the new amount of flour needed. This also applies to calculating discounts while shopping, determining proportions in construction, or even managing time effectively.
