anonymous one year ago A tree grows 1 3/4 feet per year. How long will it take the tree to grow from a height of 21 1/4 feet to a height of 37 feet?

1. anonymous

wow we gotta do a bunch of arithmetic here

2. anonymous

first we need how much it grows' what is $37-21\tfrac{1}{4}$?

3. anonymous

I'm asking my friend and she is telling me a lot of complicated steps, and she says the answer is some how 14?

4. anonymous

it takes two steps, although the division will take a couple in itself

5. anonymous

Do I have to find a common denominator?

6. anonymous

you have to subtract is all

7. anonymous

as a first step

8. anonymous

you can probably compute $37-21\tfrac{1}{4}$ in your head

9. anonymous

like if you have thirty seven dollars and you spend twenty one and a quarter, how much money do you have left?

10. anonymous

that equals 16

11. anonymous

you still have to subtract a quarter

12. anonymous

9?

13. anonymous

ok lets go slow

14. anonymous

you have $37 you spend$21.25 $37-21=16$ but $1-\frac{1}{4}=\frac{3}{4}$ so you have only $\15.75$ left in terms of money with fractions you have $15\tfrac{3}{4}$

15. anonymous

now you have to compute $15\tfrac{3}{4}\div1\tfrac{3}{4}$

16. anonymous

I have 8 whole and 4/7