Solution - Long subtraction
0.64
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths |
| 0 | . | 7 | 8 | |
| - | 0 | . | 1 | 4 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
8-4=4
| Place value | ones | . | tenths | hundredths |
| 0 | . | 7 | 8 | |
| - | 0 | . | 1 | 4 |
| . | 4 |
Subtract the numbers in the tenths column from the top number:
7-1=6
| Place value | ones | . | tenths | hundredths |
| 0 | . | 7 | 8 | |
| - | 0 | . | 1 | 4 |
| . | 6 | 4 |
Subtract the numbers in the ones column from the top number:
0-0=0
| Place value | ones | . | tenths | hundredths |
| 0 | . | 7 | 8 | |
| - | 0 | . | 1 | 4 |
| 0 | . | 6 | 4 |
The solution is: 0.64
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