Question

1. -2/9 x 15/17 + -2/9 x 2/17

2. -5/3 x 6/5 + -7/9 x 3/10

3. 15/20 x 7/5 + -9/7 x -6/4

4.-25/13 x 5/19 + -25/13 x 14/19

5 -7/13 x 13/5 + -9/7 x 5/3

6. 27/35 x 5/9 - 2/7 x -7/5

7. 10/13 x 13/5 + {-9/5} x 10/3

8. 100/27 x 9/20 + 40% x 5/3

9. 1,5 x 5/12 + 1/4 x 3/4

10. 2 1/2 x 7/5 + {-9/10} x 2/3

11. X + 45% = 2 1/2 -5/3

12. 80% + X = -5/2 + 3/4

13. 4/25 - X =-5/2 + -3/10

Answer 1

1: =-2/9(15/17+2/17)=-2/9

2: \(=\dfrac{-6}{3}+\dfrac{-21}{90}\)

=-2-7/30=-67/30

3: \(=\dfrac{3}{4}\cdot\dfrac{7}{5}+\dfrac{9}{7}\cdot\dfrac{3}{2}\)

=21/20+27/14=417/140

4: =-25/13(5/19+14/19)=-25/13

5: =-7/5-45/21=-7/5-15/7=-124/35

Answer 2

1: =-2/9(15/17+2/17)=-2/9

2: =34⋅75+97⋅32=34⋅75+97⋅32

=21/20+27/14=417/140

4: =-25/13(5/19+14/19)=-25/13

5: =-7/5-45/21=-7/5-15/7=-124/35