Question

AYUDEMEN ES ASTA HOY​

Answer 1

Respuesta:

( El tercero esta mal, espero que ya lo comprendas, cualquier duda, preguntamela = )

5/6 + 3/2 + 7/3 =

=  10/12 + 18/12 + 28/12 =

= 10 + 18 + 28/12 =

= 56/12

5/6 + 3/4 + 2/3 =

= 10/12 + 9/12 + 8/12 =

= 27/12

2/7 + 4/3 - 1/2 =

=  12/42 + 56/42 - 21/42 =

= 12 + 56 - 21/42 =

= 47 /42

15/4 - 3/3 - 3/2 =

= 45/12- 12/12 - 18/12 =

= 45 - 12 - 18 /12 =

= 15/12