The screen on Brianna's new phone is 2.85 centimeters long. What mixed number represents the length of the phone screen?

we know that the number 2.85 is equal to
2.85 = 2 + 0.85
0.85 is equal to
100 85 ​ divide by 5 both members
100 85 ​ = 20 17 ​
so 2.85 = 2 20 17 ​
the answer is 2 20 17 ​

Answered by calculista | 2024-06-11

The first step is writing the number as a fraction: 2.85=2.85/1 Then we multiply both top and bottom with 100: (2.85) 100/1 100=285/100 Then we simplify the fraction by dividing the top and the bottom with the same number (the results must be whole numbers).In our case we divide with 5: 285:5/100/5=57/20 So, 2.85 can be written as a fraction as: 57/20.
Next and final step is to write this fraction as a whole number: 57/20=(20+20+17)/20=20/20+20/20+17/20=1+1+17/20=2 17/20
So, the length of the cellphone is 2 17/20 .

Answered by W0lf93 | 2024-06-11

The length of Brianna's phone screen, 2.85 centimeters, can be expressed as the mixed number 2 \frac{17}{20}. This is done by breaking down the decimal into a whole number and a simplified fraction. Thus, the final answer is 2 \frac{17}{20}.
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Answered by calculista | 2024-09-27