Round 0.666 to 1 Decimal Place

Round 0.666 to 1 decimal place with step-by-step explanation of the rounding rules.

Answer: 0.666 ≈ 0.7

Step-by-Step Solution

Step 1 Understand Rounding

Rounding simplifies a number while keeping it close to the original value.

The rule: Look at the digit to the RIGHT of where you're rounding.

• If it's 5 or greater: round UP (increase the digit)

• If it's less than 5: round DOWN (keep the digit the same)

Step 2 Identify the Deciding Digit

We want to round 0.666 to the 1 decimal place.

The deciding digit (the one to the right of our rounding position) is: 6

Step 3 Apply the Rounding Rule

The deciding digit is 6.

Since 6 is 5 or greater, we round UP.

0.666 rounded to 1 decimal place = 0.7

Step 4 Verify the Result

Original number: 0.666

Rounded result: 0.7

The difference is 0.0340000000, which confirms our rounding is correct.

The rounded value is as close as possible to the original while having only 1 decimal place.