Question

СРОЧНО ПОМОГИТЕ!!!!!!!!!!!!!!!!!!!!!!!!!! РЕШИТЕ ПРИМЕРЫ ПО ДЕЙСТВИЯМ 1ЦЕЛАЯ 1/3*(-3/4)-(-2ЦЕЛЫХ 1/7)*1ЦЕЛАЯ 2/5=? 5/6*(-15,3-24,3*5/9)=? ЗАРАНИЕ СПАСИБО

Answer 1

1 1/3 * (-3/4)-(-2 1/7)*1 2/5=4/3*(-3/4)-(-15/7)*7/5=-1-(-15/5)=-1-(-3)=-1+3=2
5/6*(-15.3-24.3*5/9)=5/6*(-153/10 - 243/10 * 5/9)=5/6*(-153/10 - 27*5/10)=
5/6*((-153-135)/10)=5/6*(-288/10)=-144/6=-24

Answer 2

Solution to the first expression: 1 1/3 * (-3/4) - (-2 1/7) * 1 2/5

To solve the expression 1 1/3 * (-3/4) - (-2 1/7) * 1 2/5, we can follow the order of operations (PEMDAS/BODMAS) and simplify step by step.

Step 1: Convert mixed numbers to improper fractions. - 1 1/3 can be written as (3/3 + 1/3) = 4/3. - -2 1/7 can be written as (-14/7 - 1/7) = -15/7. - 1 2/5 can be written as (5/5 + 2/5) = 7/5.

Now the expression becomes: (4/3) * (-3/4) - (-15/7) * (7/5).

Step 2: Perform the multiplications. - (4/3) * (-3/4) = -1. - (-15/7) * (7/5) = -3.

Now the expression becomes: -1 - (-3).

Step 3: Simplify the subtraction. - -1 - (-3) = -1 + 3 = 2.

Therefore, the solution to the expression 1 1/3 * (-3/4) - (-2 1/7) * 1 2/5 is 2.

Solution to the second expression: 5/6 * (-15.3 - 24.3 * 5/9)

To solve the expression 5/6 * (-15.3 - 24.3 * 5/9), we can follow the order of operations (PEMDAS/BODMAS) and simplify step by step.

Step 1: Perform the multiplication inside the parentheses. - 24.3 * 5/9 = 13.5.

Now the expression becomes: 5/6 * (-15.3 - 13.5).

Step 2: Perform the subtraction inside the parentheses. - (-15.3 - 13.5) = -28.8.

Now the expression becomes: 5/6 * (-28.8).

Step 3: Perform the multiplication. - 5/6 * (-28.8) = -24.

Therefore, the solution to the expression 5/6 * (-15.3 - 24.3 * 5/9) is -24.

I hope this helps! Let me know if you have any further questions.