Question

1-а=130/300(сто тридцать трех сотых+90/300 (девяносто трех сотых) ответ

Answer 1

Ответ:
1-a=11/15
a=4/15

Answer 2

To solve the equation 1 - a = 130/300 + 90/300, we can simplify the fractions on the right side by finding a common denominator:

1 - a = (130 + 90) / 300

1 - a = 220 / 300

To simplify further, we can reduce the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 20 in this case:

1 - a = (220 ÷ 20) / (300 ÷ 20)

1 - a = 11 / 15

Now, we can solve for 'a' by subtracting 1 from both sides:

1 - 1 - a = 11 / 15 - 1

-a = 11 / 15 - 15 / 15

-a = (11 - 15) / 15

-a = -4 / 15

Finally, to solve for 'a', we can multiply both sides by -1:

a = (4 / 15) * -1

a = -4 / 15

Therefore, the solution to the equation 1 - a = 130/300 + 90/300 is a = -4/15.