When comparing the decimal parts, make sure that they have the same number of digits.
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Practice makes perfect
We want to compare two decimal numbers.
0.75 ? 0.7
The whole number parts of both decimal numbers are the same. We will compare the decimal parts of the numbers, but first, we need to make sure that the decimal parts have the same number of digits.
0. 75 ? 0. 7
The number 0.7 has only one digit in a decimal part. We know that zeros that come after nonzero numbers that are after the decimal point, do not change the value of the number at all. Let's write one 0 at the end of the decimal number 0.7.
0. 75 ? 0. 7 0
Now, we can compare the decimals. Since 75 is greater than 70, we know that 0.75 is greater than 0.70.
0.75 > 0.70 ⇒ 0.75 > 0.7
