Question

(1/12+2/5)-(0,36-0,64)-1 13/15

Answer 1

Ответ:

-1 31/300

Пошаговое объяснение:

1) 1/12 + 2/5 = 5/60 + 24/60 = 29/60

2) 0,36 - 0,64 = -0,28

3) 29/60 -(-0,28) = 29/60 + 7/25 = 145/300 + 84/300 = 229/300

4) 229/300 - 1 13/15 = 229/300 - 1 260/300 = -1 31/300

Answer 2

To simplify the expression (1/12 + 2/5) - (0.36 - 0.64) - 1 13/15, we can perform the calculations step by step:

Step 1: Simplify the fractions. 1/12 + 2/5 = (5/60) + (24/60) = 29/60

Step 2: Simplify the subtraction inside the parentheses. 0.36 - 0.64 = -0.28

Step 3: Simplify the mixed number. 1 13/15 = (1 * 15 + 13) / 15 = 28/15

Now, let's substitute the simplified values back into the expression:

(29/60) - (-0.28) - (28/15)

Step 4: Find a common denominator. The common denominator for 60 and 15 is 60.

(29/60) - (-0.28 * 60/60) - (28/15 * 4/4)

Step 5: Simplify further. (29/60) + (16.8/60) - (112/60)

Step 6: Combine the numerators. (29 + 16.8 - 112) / 60

Step 7: Calculate the numerator. (-66.2) / 60 = -1.10333333333

Finally, we have the simplified expression:

-1.10333333333 / 60

Please note that the final result may vary depending on the number of decimal places used for the calculations.