Solution - Long subtraction
8.74
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 2 | . | 6 | 7 | 4 | |
| - | 3 | . | 9 | 3 | 4 | |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the thousandths column from the top number:
4-4=0
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 2 | . | 6 | 7 | 4 | |
| - | 3 | . | 9 | 3 | 4 | |
| . | 0 |
Subtract the numbers in the hundredths column from the top number:
7-3=4
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 2 | . | 6 | 7 | 4 | |
| - | 3 | . | 9 | 3 | 4 | |
| . | 4 | 0 |
Because the upper digit (6) in the tenths column is too small to get a positive difference, borrow 1 from the digit (2) in the next number place which becomes (1) and get (16).
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 16 | |||||
| 1 | 2 | . | 6 | 7 | 4 | |
| - | 3 | . | 9 | 3 | 4 | |
| . | 4 | 0 |
Subtract the numbers in the tenths column from the top number:
16-9=7
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 16 | |||||
| 1 | 2 | . | 6 | 7 | 4 | |
| - | 3 | . | 9 | 3 | 4 | |
| . | 7 | 4 | 0 |
Because the upper digit (1) in the ones column is too small to get a positive difference, borrow 1 from the digit (1) in the next number place which becomes (0) and get (11).
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 0 | 11 | |||||
| 1 | 16 | |||||
| 1 | 2 | . | 6 | 7 | 4 | |
| - | 3 | . | 9 | 3 | 4 | |
| . | 7 | 4 | 0 |
Subtract the numbers in the ones column from the top number:
11-3=8
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 0 | 11 | |||||
| 1 | 16 | |||||
| 1 | 2 | . | 6 | 7 | 4 | |
| - | 3 | . | 9 | 3 | 4 | |
| 8 | . | 7 | 4 | 0 |
Write 0 in the tens place.
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 0 | 11 | |||||
| 1 | 16 | |||||
| 1 | 2 | . | 6 | 7 | 4 | |
| - | 3 | . | 9 | 3 | 4 | |
| 0 | 8 | . | 7 | 4 | 0 |
The solution is: 8.74
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