Question

which longest -------- exactly?


and the answer should be 1m 28cm​

Answer 1

Step-by-step explanation:

11m 52 cm can be factorized as

11.52 = 2*5.76= 2*2*2.88=2*2*2*1.44

= 2*2*2*2*0.72=2*2*2*2*2*0.36 =2*2*2*2*2*2*0.18 =2*2*2*2*2*2*2*0.09

=2*2*2*2*2*2*0.3*0.3

similarly 16m 64cm can be factorized as

16.64 = 2*8.32=2*2*4.16=2*2*2*2.08

= 2*2*2*2*1.04=2*2*2*2*2*0.52

=2*2*2*2*2*2*0.26=2*2*2*2*2*2*2*0.13

as we can see from the factors of

11.52 m & 16.64 m, that the highest common factors are 2*2*2*2*2*2 as highlighted above, so the hcf is

= 128 cm = 1.28 m or 1 m 28 cm