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Serjik [45]
3 years ago
11

The screen on briannas new phone is 2.85 centimeters long. what mixed number represents the length of the phone screen?

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
8 0
We know that 
the number 2.85 is equal to

2.85=2+0.85

0.85 is equal to

\frac{85}{100}
divide by 5 both members

\frac{85}{100} = \frac{17}{20}

so
2.85=2  \frac{17}{20}

the answer is
2 \frac{17}{20}
frez [133]3 years ago
7 0
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<span>.</span>
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