Question

1. (51 ÷ 3) + (21 ÷ 7)

Explanation:

Step1: Calculate inside the first parentheses

First, we solve the division inside the first parentheses: \(51 \div 3 = 17\).

Step2: Calculate inside the second parentheses

Next, we solve the division inside the second parentheses: \(21 \div 7 = 3\).

Step3: Add the results

Now, we add the two results together: \(17 + 3 = 20\).

Answer:

20