Question

Pla help.me with this question​

Answer 1

7. A

8. B

Explanation:

7.

1 3

4 ------- - 2 -------

2 4

9 11

------- - -------

2 4

9(2) 11

------- - -------

2(2) 4

18 11 7 3

------- - ------- = ------- = 1 -------

4 4 4 4

----------------------------------------------------------------------------------------------------------

8.

3 3

13 ------- + 16 -------

8 4

107 67

------- + -------

8 4

107 67(2)

------- + -------

8 4(2)

107 134 241 1

------- + ------- = -------- = 30 -------

8 8 8 8

I hope this helps!