Question

Me podrían ayudar?
Gracias ​

Answer 1

1)

3/4 × 2/1 = 6/4 - 4/1 = 6/4 - 16/4 = 10/4 (-1/2) = 20/4 - 4/2 = 16/2 - 1,8= 16/2

2)

2,8 ÷ (-2)= 1,4 + 3/2 = 1,7/2

3)

(1 - 0,7) = 0,6 + 1,8 = 2,4 ÷ 2 = 1,2 - 1 = 1,3

4)

2/5 ÷ 3/2 = 4/15 + 3/15 = 7/15 - 1 = 6/15

5)

0, 7 ÷ (-2) = - 03,5 + 0,1 = 03,6 (-0,1) = - 03, 5 + 1/4 = 03, 6/4

6)

10 ÷ ( 1/6 - 1/3 ) = 10 ÷ 3/6 =30/6 + 2 = 32/6 ( - 1,4 + 0,2 ) = 32/6 - 1,2 = 31,2/6