Question

MATEMÁTICA 8 ano so responde se souber​

Answer 1

a) -2/5+3/5-8/5= -2+3-8/5= -7/5
b) 1,5-1,8+0,3= -0,3+0,3= 0
c) -6,25 -6,4 -7,5= -12,65 -7,5=20,15
d) 2/7. 3/4= 6/28 (simplificar)
6/28 (:2)= 3/14
e) 3/8. 8/9= 24/72 (simplificar)
24/72 (:24)= 1/3
f) 2/3: -3/5= 2/3. -5/3= -10/9

Answer 2

Resposta:

espero ter ajudado

Explicação passo-a-passo:

A)2/5+3/5-8/5= -2+3-8/5= -7/5

B)1,5 -1,8+0,3=0,3+0,3=0

C)-6,25-6,4-75= -12,65-7,5=20,15

D)2/7. 3/4=6/28 (simplificar) 6/28 (:2)=3/14

E)3/8. 8/9=24/72 (simplificar) 24/72 (:24)=1/3

F)2/3: -3/5=2/3. -5/3= -10/9