Question

7,6/(1целоя4\15)-(-9,75)/1целоя1\12

Answer 1

7 6/10: 1 4/15- (-9 75/100):1 1/12= 7 3/5:1 4/15-(-9 3/4): 1 1/12= 38/5: 19/15-(-39/4): 13/12= 38/5*15/19-(-39/4)*12/13= 6-(-9)= 6+9= 15

Answer 2

To solve the expression, let's simplify it step by step:

First, let's simplify the fractions within parentheses:

1 целоя 4/15 = 1 + 4/15 = 1 * 15/15 + 4/15 = 15/15 + 4/15 = 19/15

1 целоя 1/12 = 1 + 1/12 = 1 * 12/12 + 1/12 = 12/12 + 1/12 = 13/12

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

7.6 / (19/15) - (-9.75) / (13/12)

To simplify the expression further, let's multiply the numerator by the reciprocal of the denominator for each fraction:

7.6 * (15/19) - (-9.75) * (12/13)

Now, perform the multiplications:

7.6 * (15/19) = 114/19

-9.75 * (12/13) = -117/13

The expression becomes:

114/19 - (-117/13)

To subtract fractions, we need a common denominator. The common denominator for 19 and 13 is 19 * 13 = 247.

Rewriting the fractions with the common denominator:

(114/19) * (13/13) - (-117/13) * (19/19)

Now, perform the multiplications:

(114 * 13) / (19 * 13) - (-117 * 19) / (13 * 19)

= 1482/247 + 2223/247

= (1482 + 2223) / 247

= 3705/247

The expression simplifies to 3705/247.