Hello!
We have the following data:
Lupu Bridge (China) = 12,795 feet long
Hart Bridge (USA) = 3,845 feet long
Let's divide the largest length by the shortest length, so we'll know how many times the Lupu Bridge is bigger than the Hart bridge, let's see:
![\dfrac{12,795}{3,845} \:\:\boxed{\boxed{\approx 3,3\:longer}}\end{array}}\qquad\checkmark](https://tex.z-dn.net/?f=%5Cdfrac%7B12%2C795%7D%7B3%2C845%7D%20%5C%3A%5C%3A%5Cboxed%7B%5Cboxed%7B%5Capprox%203%2C3%5C%3Alonger%7D%7D%5Cend%7Barray%7D%7D%5Cqquad%5Ccheckmark)
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I Hope this helps, greetings ... DexteR! =)
There are 3 numbers as such.
First lets list all the factors of 12
1,2,3,4,6,12
now lets see which are multiples of 3
3,6 and 12 are multiples of 3
therefore we are left with
1,2 and 4
If you mean like a method to solve it fast here I have 1 solution I usually use;
3x2.7
3x.7=2.1
3x2=6
Then in the question there is 1 number behind the decimal point so the answer should have 1 number behind as well.
=8.1