Question

1) (6‐4 8/15):2,2;2) (1,25+1/6)*2,4;​

Answer 1

Ответ:

1)2/3

2)3 2/5

Пошаговое объяснение:

1)22/15*10/22=2/3

2)5/4+1/6=15/12+2/12=17/12

17/12*24/10=17/5=3 2/5

Answer 2

Let's solve these mathematical expressions step by step:

1. (6 - 4 8/15) ÷ 2

First, let's subtract the mixed number (4 8/15) from 6:

6 - 4 8/15 = 6 - (4 + 8/15) = 6 - 4 - 8/15 = 2 - 8/15

Now, we need to divide the result by 2:

(2 - 8/15) ÷ 2 = (30/15 - 8/15) ÷ 2 = (22/15) ÷ 2

To divide by 2, you can simply divide the numerator (22) by 2:

(22/15) ÷ 2 = (22/15) * (1/2) = (22/30)

Now, let's simplify the fraction:

(22/30) can be reduced by dividing both the numerator and denominator by their greatest common divisor, which is 2:

(22/30) ÷ (2/2) = (11/15)

So, the result of the first expression is 11/15.

2. (1.25 + 1/6) * 2.4

First, let's add 1.25 and 1/6:

1.25 + 1/6 = 1.25 + 0.166666... (recurring 6)

Now, let's add these numbers:

1.25 + 0.166666... ≈ 1.416666...

Now, multiply the result by 2.4:

1.416666... * 2.4 ≈ 3.4 (rounded to one decimal place)

So, the result of the second expression is approximately 3.4.