Solve Decimal Subtraction: 16.1 - 4.7

Video Solution

Solution Steps

00:00 Solve

00:03 We'll use long subtraction for calculation

00:08 Place the decimal point in the appropriate position

00:11 The digit is smaller than the digit we need to subtract from

00:14 The digit is smaller than the digit we need to subtract from

00:18 The larger digit will decrease by 1, and our digit will increase by 10

00:22 Now we'll subtract from the larger number and place

00:36 We'll continue to subtract and place accordingly

00:55 And this is the solution to the question

Step-by-Step Solution

To solve the problem $16.1 - 4.7$ , follow these steps:

Step 1: Align the numbers by their decimal points:
$\quad 16.1$
$-\ 4.7$
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Step 2: Subtract from right to left: Start with the decimal part:
The problem is $16.1 - 4.7$ . Since 1 (tenths place of 16.1) is less than 7 (tenths place of 4.7), we need to borrow.
Step 3: Borrow from the whole number part: Modify the 16 to become 15, and the decimal part becomes 11 ten-thousandths. After getting 15 from 16, the subtraction becomes:
$\quad 15.11$
$-\ 4.7$
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Subtract the tenths place: $11 - 7 = 4$ . Now subtract the integer part: $15 - 4 = 11$ .
Finalize the result:
$\quad 11.4$ .

Thus, the solution to $16.1 - 4.7$ is $11.4$ .