Order the numbers from least to greatest.

2.23, 2.135, 2 2/7

2 2/7, 2.135, 2.23

To order the numbers from least to greatest, we can convert the mixed number 2 2/7 to a decimal.

First, convert the fraction 2/7 to a decimal by dividing the numerator (2) by the denominator (7):
2 ÷ 7 ≈ 0.2857

Now we have the three numbers in decimal form:
2.23, 2.135, 2.2857

Ordering them from least to greatest, we have:
2.135, 2.23, 2.2857

To order the numbers from least to greatest, we can convert the mixed number into a decimal.

First, let's convert the mixed number 2 2/7 into a decimal.

To do this, we multiply the whole number (2) by the denominator (7), which gives us 14. Then, we add the numerator (2) to get 16.

Next, we divide the numerator (16) by the denominator (7). The quotient is 2.285714 repeating.

So, the mixed number 2 2/7 can be written as a decimal approximation of 2.285714.

Now, let's compare the three numbers: 2.23, 2.135, and 2.285714.

From smallest to greatest, the order is:

2.135, 2.23, 2.285714