3 9/20 = write as a decimal number
3.45
how did you get this answer
Rezu divided 9 by 20 to get 0.45.
To convert the mixed number 3 9/20 to a decimal number, follow these steps:
1. Convert the whole number part: In this case, the whole number part is 3. To convert it to a decimal, simply write it as it is: 3.
2. Convert the fraction part: The fraction part is 9/20. To convert it to a decimal, divide the numerator (9) by the denominator (20). The division should look like this: 9 ÷ 20.
To divide fractions, you can follow these steps:
- Multiply the numerator of the first fraction by the denominator of the second fraction.
- Multiply the denominator of the first fraction by the numerator of the second fraction.
Applying these steps, 9 ÷ 20 becomes (9/1) ÷ 20, which is equal to (9 ÷ 1) × (1 ÷ 20).
Now, multiply the numerator and denominator: 9 × 1 = 9, and 1 × 20 = 20. So, 9 ÷ 20 is equal to 9/20 as a fraction.
3. Combine the whole number part and the fractional part: Place a decimal point after the whole number, and write the fractional part after it. In this case, the whole number part is 3, and the fractional part is 9/20. Therefore, 3 9/20 as a decimal number is 3.45.
So, 3 9/20 = 3.45.