2/5 in decimal form must show work?
回答 (7)
Method 1: Calculate 2÷5 using long division.
Method 2: Give the fraction a denominator of 100.
2/5 = 200/500 = (200÷5)/(500÷5) = 40/100 = 0.40
We use a decimal system so there are tenths not fifths...
2/5(2/2)=4/10 since tenths are the first digit to the right of the decimal point...
0.4
(2/5) = (2/5)(20/20) = 40/100 = (4*10^10)/(10^2)
= 4(10^(-1)) = 0.4.
you can put 2/5 in decimal form by doing 2 divided by 5.
(long division required to show work)
__0
5 | 2 -------------------------> 5 goes into 2 zero times
__0.4
5 | 2.0 -------------------------------> 5 goes into 20 4 times
2/5 = 0.4
Hope this helped
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收錄日期: 2021-04-18 00:09:50
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