Question

4 - 3 1/2 (2 1/7 - 1 1/5) помогите пожалуйста

Answer 1

Ответ:

Subtract 3 1/2 from 4:

4 - 3 1/2 = 4 - 7/2 = (8/2) - (7/2) = 1/2.

Subtract 1 1/5 from 2 1/7:

2 1/7 - 1 1/5 = [(15/7) - (12/5)].

To subtract fractions with different denominators, you need to find a common denominator, which in this case is 35.

(15/7) * (5/5) - (12/5) * (7/7) = (75/35) - (84/35).

Now, subtract the fractions:

(75/35) - (84/35) = (75 - 84)/35 = -9/35.

Now, you have the two results:

4 - 3 1/2 = 1/2.

2 1/7 - 1 1/5 = -9/35.

So, your final expression is: 1/2 - 9/35.