Question

algm me ajuda pelo amor de Deus​

Answer 1

Resposta:

1) 3/4 2 - 1/2 3=2/1 1

2) 2-3/5+2/3=1/9

3)essa não sei

Answer 2

Resposta:

IV) (3/4)²-(1/2)³

3²/4²-1/2³

9/16 -1/8

=9/16 -2 *1/(2*8)

= 9/16 -2/16 =7/16

V) 2 -(3/5+2/3)

2 -[3*3/(3*5) +5*2/(5*3)]

2-[9/15+10/15]

2-19/15

=15*2/15-19/15

=30/15-19/15

= 11/15

VI) 1 : 3/7 : 2/3

1 * 7/3 : 2/3

7/3 : 2/3

7/3 * 3/2

= 7/2