Step by step
The question
Question: simplify √48 over √3.
√48√3
1 One root
Rule: a root over a root is the root of the fraction.
√a√b = √ab
So we write one root over the fraction.
= √483
48 divided by 3 is 16.
48 ÷ 3 = 16
So we get √16.
= √16
2 Simplify the root
16 is a square number: 4 times 4 is 16.
So √16 is 4.
4 × 4 = 16
So we get 4.
So the answer is 4.
= 4
Careful!
48 divided by 3 is 16.
But the answer is the ROOT of 16.
Don't drop the root.
Careful: not √48√3 = 16 ✗
3 Check
Let's check with a calculator.
The start is about 4.00.
Start: √48√3 ≈ 4.00
The answer is about 4.00 too.
So it is right!
Answer: 4 ≈ 4.00
Let's look back.
First: one root.
Then: simplify the root.
Last: check.
Answer
= 4