Question

if a:b = 4:5 and b:c = 1.2 : 1.8 find a:c​

Answer 1

Step-by-step explanation:

a:b=4:5

b:c=1.2:1.8

a=4

c=1.8

a:c=4:1.8

=2:0.9

Answer 2

Answer:

a:b=4:5

4/5

b:c=1.2:1.8

1.2/1.8

a:c=a/b×b/c

= a/c, a:c

4/5×1.2/1.8

= 4.8/9.0

4.8×10/9.0×10

48/90

8/15

a:c= 8:15