Kelly completed 4/5 of homework in a half hour. How much of her homework did she complete as a decimal? How much does she have left (in a decimal)? Explain.
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Answer:
0.2 Home work remaining
Step-by-step explanation:
4/5 = 0.8
When you calculate 4/5 you get 0.8 which can be looked at as 80% of homework completed which means she has 20% left but what we need is to calculate the decimal of the remaining home work.
Remaining home work = 1 - completed homework
1 - 4/5
= 5/5 - 4/5
= 1/5
=0.2 Home work remaining
Another way is since we calculated the decimal at the start 4/5 = 0.8
we could of also done 1 - 0.8 = 0.2
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