(2 1/6 - 2/3) * ( 1 - 7/15)=
что меньше 5 часть или 18% учащихся?

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вопрос

First, we need to simplify the expression:

(2 1/6 - 2/3) * ( 1 - 7/15)

2 1/6 can be converted to an improper fraction: 13/6

(13/6 - 2/3) * (1 - 7/15)

To subtract fractions, we need a common denominator. In this case, the common denominator is 6.

(13/6 - 4/6) (15/15 - 7/15)
(9/6) (8/15)
(3/2) * (8/15)
24/30
4/5

So, (2 1/6 - 2/3) * (1 - 7/15) = 4/5

Next, we need to compare 5/18 and 18%. To do this, we need to convert 18% to a fraction.

18% = 18/100 = 9/50

Now we compare 4/5 and 9/50. To do this, we find a common denominator, which in this case is 50.

4/5 = 40/50

40/50 > 9/50

Therefore, 5/18 is less than 18% (9/50) of students.