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DENIUS [597]
3 years ago
12

jamal completed his math homework in 2/3 of an hour and his reading homework in 3/5 of an hour. How much time did it take him to

complete his math and reading homework in all?
Mathematics
1 answer:
Assoli18 [71]3 years ago
3 0

Answer:

Step-by-step explanation: We have to add how much time it took him to do all of his homework. To do this, we have to add 2/3 and 3/5.

First, we have to find a LCM between 3 and 5.

The LCM between those numbers are 15.

Next we find out what number to multiply 3 by to get 15, we multiply it by 5.

2 * 5 = 10

3 * 5 = 15

Next we find out what number to multiply 5 by to get 15, we multiply it by 3.

3 * 3 = 9

5 * 3 = 15

10/15+9/15=19/15

We are left off with 1 4/15

So it took him 1 hour and 4/15 minutes to do his homework.

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Answer:

1,020 seconds

Step-by-step explanation:

we know that

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Remember that

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Convert minutes to seconds

17\ min=17(60)=1,020\ sec

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wel
The first thing we must do for this case is to define a variable.
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