Question

pls di jawab soal nya aku kurang ngerti pls​

Answer 1

1. 28 ( -1/4 + 1/7)

-1/4 + 1/7 = -3/28

28 × -3/28

-84/28 = -3

2. ( 3/4 - 5/6) × 36

3/4 - 5/6 = -1/12

-1/12 × 36

-36/12

-3

3. 153 + (-136) = 17

4. 720