Question

Efetue as adições a) (+3/5)+(+1/2)= b) (-2/3)+(+5/4)= c) (-4/9)+(+2/3)= d) (-3/7)+(+2/9)= e) (-1/8)+(-7/8)= f) (-1/3)+(-1/5)= g) (-1/8)+(+5/4)= h) (+1/5)+(+3/5)=

Answer 1

Resposta:

Explicação passo-a-passo:

a) (+3/5)+(+1/2)= (6+5)/10 = 11/10

b) (-2/3)+(+5/4)= (-8+15)/12 = 7/12

c) (-4/9)+(+2/3)= (-8+12)/18 = 4/18 ou 2/9

d) (-3/7)+(+2/9)= (-27+14)/63 = -13/63

e) (-1/8)+(-7/8)= (-1-7)/8 = -8/8 = -1

f) (-1/3)+(-1/5)= (-5-3)/15 = -8/15

g) (-1/8)+(+5/4)= (-1+10)/8 = 9/8

h) (+1/5)+(+3/5)=  (1+3)/5 = 4/5