To convert the decimal number 9.45 into a mixed number, follow these steps:
- Identify the whole number: The number before the decimal point (9) is the whole number.
- Convert the decimal to a fraction: Take the decimal part (0.45) and convert it into a fraction. Since 0.45 is equal to 45/100, we simplify this fraction. To do this, find the greatest common divisor (GCD) of 45 and 100, which is 5.
- Simplify the fraction: Divide both the numerator and the denominator by 5:
- 45 ÷ 5 = 9
- 100 ÷ 5 = 20
- This simplifies 0.45 to 9/20.
- Combine the whole number and the fraction: Now combine the whole number (9) with the simplified fraction (9/20). Therefore, the mixed number is:
9 9/20
Thus, 9.45 as a mixed number is 9 9/20.