Solution - Long subtraction
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 4 | . | 6 | 0 | 9 | 7 | |
| - | 2 | . | 5 | 6 | 7 | 8 |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (7) in the ten thousandths column is too small to get a positive difference, borrow 1 from the digit (9) in the next number place which becomes (8) and get (17).
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 8 | 17 | |||||
| 4 | . | 6 | 0 | 9 | 7 | |
| - | 2 | . | 5 | 6 | 7 | 8 |
| . |
Subtract the numbers in the ten thousandths column from the top number:
17-8=9
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 8 | 17 | |||||
| 4 | . | 6 | 0 | 9 | 7 | |
| - | 2 | . | 5 | 6 | 7 | 8 |
| . | 9 |
Subtract the numbers in the thousandths column from the top number:
8-7=1
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 8 | 17 | |||||
| 4 | . | 6 | 0 | 9 | 7 | |
| - | 2 | . | 5 | 6 | 7 | 8 |
| . | 1 | 9 |
Because the upper digit (0) in the hundredths column is too small to get a positive difference, borrow 1 from the digit (6) in the next number place which becomes (5) and get (10).
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 5 | 10 | |||||
| 8 | 17 | |||||
| 4 | . | 6 | 0 | 9 | 7 | |
| - | 2 | . | 5 | 6 | 7 | 8 |
| . | 1 | 9 |
Subtract the numbers in the hundredths column from the top number:
10-6=4
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 5 | 10 | |||||
| 8 | 17 | |||||
| 4 | . | 6 | 0 | 9 | 7 | |
| - | 2 | . | 5 | 6 | 7 | 8 |
| . | 4 | 1 | 9 |
Subtract the numbers in the tenths column from the top number:
5-5=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 5 | 10 | |||||
| 8 | 17 | |||||
| 4 | . | 6 | 0 | 9 | 7 | |
| - | 2 | . | 5 | 6 | 7 | 8 |
| . | 0 | 4 | 1 | 9 |
Subtract the numbers in the ones column from the top number:
4-2=2
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 5 | 10 | |||||
| 8 | 17 | |||||
| 4 | . | 6 | 0 | 9 | 7 | |
| - | 2 | . | 5 | 6 | 7 | 8 |
| 2 | . | 0 | 4 | 1 | 9 |
The solution is: 2.0419
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