Question

1/3-2/9, 3/20+5/8, 7/18+1/6-0,2 Помогите пожалуйста!!!

Answer 1

1/3-2/9=3/9-2/9=1/9
3/20+5/8=6/40+25/40=31/40
7/18+1/6-0.2=7/18+3/18-0.2=10/18-0.2=0,05

Answer 2

1) ( 1/3 ) - ( 2/9 ) = ( 3/9 ) - ( 2/9 ) = 1/9 ;
2) ( 3/20 ) + ( 5/8 ) = ( 6/40 ) + ( 25/40 ) = 31/40 ;
3) ( 7/18 ) + ( 1/6 ) - 0,2 = ( 7/18 ) + ( 3/18 ) - ( 2/10 ) = ( 10/18 ) - ( 2/10 ) =
    = ( 5/9 ) - ( 1/5 ) = ( 25/45 ) - ( 9/45 ) = 16/45 

Answer 3

Давайте рассчитаем значения выражений, которые вы предоставили.

1. 1/3 - 2/9: To subtract fractions, we need to have a common denominator. In this case, the common denominator is 9. So, we have: 1/3 - 2/9 = (3/9) - (2/9) = 1/9.

2. 3/20 + 5/8: To add fractions, we need to have a common denominator. In this case, the common denominator is 40. So, we have: 3/20 + 5/8 = (6/40) + (25/40) = 31/40.

3. 7/18 + 1/6: To add fractions, we need to have a common denominator. In this case, the common denominator is 18. So, we have: 7/18 + 1/6 = (7/18) + (3/18) = 10/18 = 5/9.

4. 0,2: I'm sorry, but I'm not sure what you mean by "0,2." Could you please clarify?

Let me know if there's anything else I can help you with!