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 | hundred thousandths |
| 0 | . | 0 | 2 | 7 | |||
| - | 0 | . | 0 | 2 | 6 | 9 | 9 |
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 0 | . | 0 | 2 | 7 | 0 | 0 | |
| - | 0 | . | 0 | 2 | 6 | 9 | 9 |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the hundred thousandths column is too small to get a positive difference, borrow 1 from the number to the left (70) which becomes (69) and get (10).
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 6 | 9 | 10 | |||||
| 0 | . | 0 | 2 | 7 | 0 | 0 | |
| - | 0 | . | 0 | 2 | 6 | 9 | 9 |
| . |
Subtract the numbers in the hundred thousandths column from the top number:
10-0-9=1
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 6 | 9 | 10 | |||||
| 0 | . | 0 | 2 | 7 | 0 | 0 | |
| - | 0 | . | 0 | 2 | 6 | 9 | 9 |
| . | 1 |
Subtract the numbers in the ten thousandths column from the top number:
9-9=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 6 | 9 | 10 | |||||
| 0 | . | 0 | 2 | 7 | 0 | 0 | |
| - | 0 | . | 0 | 2 | 6 | 9 | 9 |
| . | 0 | 1 |
Subtract the numbers in the thousandths column from the top number:
6-6=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 6 | 9 | 10 | |||||
| 0 | . | 0 | 2 | 7 | 0 | 0 | |
| - | 0 | . | 0 | 2 | 6 | 9 | 9 |
| . | 0 | 0 | 1 |
Subtract the numbers in the hundredths column from the top number:
2-2=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 6 | 9 | 10 | |||||
| 0 | . | 0 | 2 | 7 | 0 | 0 | |
| - | 0 | . | 0 | 2 | 6 | 9 | 9 |
| . | 0 | 0 | 0 | 1 |
Subtract the numbers in the tenths column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 6 | 9 | 10 | |||||
| 0 | . | 0 | 2 | 7 | 0 | 0 | |
| - | 0 | . | 0 | 2 | 6 | 9 | 9 |
| . | 0 | 0 | 0 | 0 | 1 |
Subtract the numbers in the ones column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths |
| 6 | 9 | 10 | |||||
| 0 | . | 0 | 2 | 7 | 0 | 0 | |
| - | 0 | . | 0 | 2 | 6 | 9 | 9 |
| 0 | . | 0 | 0 | 0 | 0 | 1 |
The solution is: 0.00001
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