We need to first evaluate [ 1 + sqrt (5) ] / 2
This equals ≈ 1.618
Note that the first can't be correct ..... 6/6 = 1
Look at the second .....7/5 = 1.4
Look at the third .....7.5 / 4.5 = 1.66
And the last.....7.75 /4.25 = 1.82
So.....which is closest to 1.618 ????