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

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вопрос

To solve this expression, we need to simplify each operation step by step.

First, let's simplify the expression inside the parentheses:

(-1/12 + 2/5) = (-5/60 + 24/60) = 19/60

(- 0.36 - 0.64) = -1.0

Now we can substitute these values back into the original expression and simplify further:

19/60 - (-1.0) - 1 13/15

= 19/60 + 1.0 - 1 13/15

= 19/60 + 60/60 - 1 13/15

= 79/60 - 1 13/15

Now, convert the mixed number to an improper fraction:

1 13/15 = (15*1 + 13)/15 = 28/15

= 79/60 - 1 28/15

= 79/60 - 90/15

= 79/60 - 6

To subtract fractions with unlike denominators, we need to find a common denominator. In this case, the common denominator is 60.

= (79 - 360)/60

= -281/60

Therefore, the final result of the expression is -281/60 or -4 41/60.