What is ? Express your answer as a common fraction.

Question

0

2716

2

+1314

What is $0.8\overline{4}-0.\overline{4}$ ? Express your answer as a common fraction.

AWESOMEEE May 25, 2015

+129852

+6

Best Answer

0.844444..... = [84 -8] /90 = 76/90

0.4444..... = 4/9

So ..... 76/90 - 4/9 = [9(76) - 4(90)]/ [9 * 90] = [684 - 360] / 810 = 324/810 = 162/405 = [2*81] /[5 * 81] = 2/5

CPhill May 25, 2015

CPhill · Answer 1 · 2015-05-25T08:30:01

0.844444..... = [84 -8] /90 = 76/90

0.4444..... = 4/9

So ..... 76/90 - 4/9 = [9(76) - 4(90)]/ [9 * 90] = [684 - 360] / 810 = 324/810 = 162/405 = [2*81] /[5 * 81] = 2/5

MathsGod1 · Answer 2 · 2015-05-25T08:06:58

I'll have a go.

0.84-0.4=0.44

As a fraction.

44/100 = 22/50 = 11/25

11/25