To evaluate the expression 4 ÷ 1/4 - 1, we can follow these steps:
- Handle the division first:
- Now, subtract 1 from the result:
Dividing by a fraction is the same as multiplying by its reciprocal. So, we can rewrite 4 ÷ 1/4 as 4 × 4/1:
4 × 4 = 16
We take the result from the previous step (which is 16) and subtract 1:
16 - 1 = 15
Therefore, the final answer is 15.