Question

А) -5\12*8\9*(-1 1\8)*(-4\15)=

Answer 1

Ответ:

1\6

Пошаговое объяснение:

а) -5\12*8\9*(-1 1\8)*(-4\15)=1\6

1.) -5\12*8/9= 12 и 8 сокращаются получается там 2 и там 2 =10\18= можно ещё сократить на 2 =5\9

2.) 5\9*(-1 1\8)=5\9 * на преобразованную дробь на 9\8 сокращаем 9 на 9 там 1 и там 1 =-5\8

3.)-5\8*(-4\15)= сокращаем 15 на 5 получаем в знаменателе 3 в числителе 1 и сокращаем 8 на 4 получаем в знаменателе 2 в числителе 1 =1\6

Answer 2

Ответ:

-5/12•8/9•(-11/8)•(-4/15)=-5/96/(-99/72)•-0,27=-0,052/-1,375•-0,27=0,0378•-0,27=0,010206

Пошаговое объяснение:

Answer 3

To calculate the expression -5/12 * 8/9 * (-1 1/8) * (-4/15), you can follow these steps:

Step 1: Convert mixed numbers to improper fractions: -1 1/8 = -9/8

Step 2: Multiply the fractions:

-5/12 * 8/9 * (-9/8) * (-4/15)

Step 3: Simplify the fractions if possible:

-5/12 and 8/9 have no common factors to cancel, so you can leave them as they are.

-9/8 can be simplified by dividing both the numerator and denominator by their greatest common divisor (GCD), which is 1:

-9/8

-4/15 can also be simplified by dividing both the numerator and denominator by their GCD, which is 1:

-4/15

Now, you have:

-5/12 * 8/9 * -9/8 * -4/15

Step 4: Multiply the fractions:

-5/12 * 8/9 = (-5 * 8) / (12 * 9) = -40/108 -9/8 * -4/15 = (9 * 4) / (8 * 15) = 36/120

Step 5: Simplify the results:

-40/108 can be simplified by dividing both the numerator and denominator by their GCD, which is 4:

-40/108 = (-40/4) / (108/4) = -10/27

36/120 can be simplified by dividing both the numerator and denominator by their GCD, which is 12:

36/120 = (36/12) / (120/12) = 3/10

Now you have:

-10/27 * 3/10

Step 6: Multiply the fractions:

-10/27 * 3/10 = (-10 * 3) / (27 * 10) = -30/270

Step 7: Simplify the result:

-30/270 can be simplified by dividing both the numerator and denominator by their GCD, which is 30:

-30/270 = (-30/30) / (270/30) = -1/9

So, the value of the expression is -1/9.