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Kalkulator ułamków dziesiętnych

Konwersja ułamków zwykłych na dziesiętne krok po kroku

Kalkulator zamieni podany ułamek (właściwy lub niewłaściwy) lub liczbę mieszaną na liczbę dziesiętną (ewentualnie powtarzającą się lub rekurencyjną), z pokazanymi krokami.

Enter a fraction or

If you don't need a mixed number, leave the left cell empty.
If you need a negative fraction, write the minus sign in the left cell.

If the calculator did not compute something or you have identified an error, or you have a suggestion/feedback, please contact us.

Solution

Your input: convert 90022 into a decimal.

Write the problem in the special format:

40.9090922900

Step 1

How many 22's are in 9? The answer is 0.

Write down the calculated result in the upper part of the table.

Now, 9022=90=9.

Bring down the next digit of the dividend.

040.9090922900.00000000.0000lll0.lll90.

Step 2

How many 22's are in 90? The answer is 4.

Write down the calculated result in the upper part of the table.

Now, 90422=9088=2.

Bring down the next digit of the dividend.

040.9090922900.00000000.0000lll0.lll90.000.0000lll88.lll20.

Step 3

How many 22's are in 20? The answer is 0.

Write down the calculated result in the upper part of the table.

Now, 20022=200=20.

Bring down the next digit of the dividend.

040.9090922900.00000000.0000lll0.lll90.000.0000lll88.lll20.00.00000lll0.lll20.0

Step 4

How many 22's are in 200? The answer is 9.

Write down the calculated result in the upper part of the table.

Now, 200922=200198=2.

Bring down the next digit of the dividend.

040.9090922900.00000000.0000lll0.lll90.000.0000lll88.lll20.00.00000lll0.lll20.000.00000lll19.8lll20

Step 5

How many 22's are in 20? The answer is 0.

Write down the calculated result in the upper part of the table.

Now, 20022=200=20.

Bring down the next digit of the dividend.

040.9090922900.00000000.0000lll0.lll90.000.0000lll88.lll20.00.00000lll0.lll20.000.00000lll19.8lll2000000lll0lll200

Step 6

How many 22's are in 200? The answer is 9.

Write down the calculated result in the upper part of the table.

Now, 200922=200198=2.

Bring down the next digit of the dividend.

040.9090922900.00000000.0000lll0.lll90.000.0000lll88.lll20.00.00000lll0.lll20.000.00000lll19.8lll2000000lll0lll20000000lll198lll20

Step 7

How many 22's are in 20? The answer is 0.

Write down the calculated result in the upper part of the table.

Now, 20022=200=20.

Bring down the next digit of the dividend.

040.9090922900.00000000.0000lll0.lll90.000.0000lll88.lll20.00.00000lll0.lll20.000.00000lll19.8lll2000000lll0lll20000000lll198lll20000lll0lll200

Step 8

How many 22's are in 200? The answer is 9.

Write down the calculated result in the upper part of the table.

Now, 200922=200198=2.

040.9090922900.00000000.0000lll0.lll90.000.0000lll88.lll20.00.00000lll0.lll20.000.00000lll19.8lll2000000lll0lll20000000lll198lll20000lll0lll200000lll198lll2

As can be seen, the digits are repeating with some period, therefore it is a repeating (or recurring) decimal: 90022=40.9¯09

Answer: 90022=40.9¯09