Soluzione - Long subtraction
51,93
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 7 | , | 2 | 8 | |
| - | 1 | 5 | , | 3 | 5 |
| , |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
8-5=3
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 7 | , | 2 | 8 | |
| - | 1 | 5 | , | 3 | 5 |
| , | 3 |
Because the upper digit (2) in the tenths column is too small to get a positive difference, borrow 1 from the digit (7) in the next number place which becomes (6) and get (12).
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 12 | ||||
| 6 | 7 | , | 2 | 8 | |
| - | 1 | 5 | , | 3 | 5 |
| , | 3 |
Subtract the numbers in the tenths column from the top number:
12-3=9
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 12 | ||||
| 6 | 7 | , | 2 | 8 | |
| - | 1 | 5 | , | 3 | 5 |
| , | 9 | 3 |
Subtract the numbers in the ones column from the top number:
6-5=1
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 12 | ||||
| 6 | 7 | , | 2 | 8 | |
| - | 1 | 5 | , | 3 | 5 |
| 1 | , | 9 | 3 |
Subtract the numbers in the tens column from the top number:
6-1=5
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 12 | ||||
| 6 | 7 | , | 2 | 8 | |
| - | 1 | 5 | , | 3 | 5 |
| 5 | 1 | , | 9 | 3 |
The solution is: 51,93
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