Question

Me ajudem pffff :(
É só essas perguntas

Answer 1

1-

a) 5/4+3/4=8/4=2

b) -6/5-5/7 =-42/35-25/35=-77/35

c)3/5-8/5=-5/5=-1

d) -14/35+25/35=11/35

2-

2/6 gastou

1-2/6=4/6 é o que sobrou

V*4/6 = 140

V= 140*6/4= R$ 210,00

3-

a) 15/6 * 2/5=30/30=1  

b) 3/4*5/7*1/2= 15/56

c) -6/11 * 3/5 =-18/55

4-

a) ==> 60/22

b) ==> 5/17

c) ==> 8/39

5-

2/5  /  7/3

=(2/5) * (3/7) =6/35

6-

10/(2/4) = 10*4/2 = 20 plantas