Question

Lucas cut a board that is 3 1/5 ft long and 3 1/3 ft wide. What is the area of the board?
Express in simplest form

Answer 1

What do you think it is?

Answer 2

A. 6 8/15
B. 9 1/15
C. 9 2/3
D. 10 2/3

Answer 3

@flower2468

Answer 4

D

Answer 5

No direct answers!

Answer 6

and I need someone to explain it to me! thxs

Answer 7

Multiply the sides together

Answer 8

@rebeccaxhawaii

Answer 9

@Qwertty123

Answer 10

@phi

Answer 11

can you change 3 1/5 to an improper fraction ?

Answer 12

no

Answer 13

first change 3 by multiplying it by 5/5
what do you get ?

Answer 14

Area of a rectangle = A = (length) * (width).

Here, the length is ... ? and the width is ... ?

So the area is (length) * (width) = ?

Answer 15

25

Answer 16

And yes, the first step is to convert these mixed numbers to improper fractions.

Answer 17

what is 3*5 / 5 ?

Answer 18

25

Answer 19

what is 3*5 ? ( not 25!)

Answer 20

15 i meant

Answer 21

what is 3*5 / 5 ?

Answer 22

sorry i got mixed up with 5 times 5

Answer 23

3

Answer 24

yes, 3 is the same as 15/5 (if you simplify it you get back 3)

anyway
3 1/5 is the same as
\[ \frac{15}{5}+\frac{1}{5} \]
you add the tops and keep the same bottom

Answer 25

3 1/5

Answer 26

ok, but we are changing 3 1/5 to 15/5 + 1/5 to get an improper fraction

can you add
\[ \frac{15}{5} + \frac{1}{5}\]?

Answer 27

3 1/5

Answer 28

you add fractions with the *same bottom*, you add their tops

Answer 29

???

Answer 30

what is 15+1 ?

Answer 31

16

Answer 32

that means
\[ \frac{15}{5}+\frac{1}{5}= \frac{16}{5} \]

what you did is change 3 1/5 to 16/5

Answer 33

yes

Answer 34

people learn a "rule"