Sagot :
Answer:
a) ab=8 , bc=6
ab:bc=8:6 =4:3
b)ab+bc = 8+6=14
cd=12
(ab+bc) cd=14:12=7:6
c) ab +cd 8:12=2:3
d)bc+cd =6+12=18
ab:(bc+cd=8:18=4:9
Answer:
a) ab=8 , bc=6
ab:bc=8:6 =4:3
b)ab+bc = 8+6=14
cd=12
(ab+bc) cd=14:12=7:6
c) ab +cd 8:12=2:3
d)bc+cd =6+12=18
ab:(bc+cd=8:18=4:9