+0

+4
1086
28
+1011

Johnetta simplified 7/9-3/8 ; her work is shown below. Identify where she made her error.

Original division problem 7/9-3/8:

Step 1:  7/9*3/8

Step 2:       $$\frac{7 * 3}{9 * 8}$$

Step 3:  21/72

Step 4: 7/24

oPTIONS bELOW

Step 1 think it is

Step 2

Step 3

Step 4

I belive its Step 4 that has a erorr Just wanted to clarify Im like 50%/50% ON THIS

Jul 25, 2019

#1
+1712
+6

I feel like step one is wrong.

The problem was,

$$\frac{7}{9}-\frac{3}{8}$$

and step one multiplys them, which is incorrect.

The step reads the problem wrong.

Step 4 is correct however.

21/72 simplifys to

7/24.

Jul 25, 2019
edited by tommarvoloriddle  Jul 25, 2019
edited by tommarvoloriddle  Jul 25, 2019
#2
+1011
+2

Thats true! Thanks

Now a question real quick for you so Step 1 is

7/9 . 3/8 do you think that means Multiplacation before I take your answer I think the dot Means Multiplucation Thanks!

(:

Nickolas  Jul 25, 2019
#3
+434
+1

The dot does indicate multiplaction.

#4
+1712
+5

usally dots in math mean multiplying

sometimes decimals, but I dont think here.

tommarvoloriddle  Jul 25, 2019
edited by tommarvoloriddle  Jul 25, 2019
#5
+1011
+2

So actually Hectictar just asked me im sure for  7/9-3/8 is the question I looked and it wasint so thanks (THANKS HECTICTAR FOR REMINDING ME) so 7/9 Divided by 3/8 so you think its still 1

Nickolas  Jul 25, 2019
#6
+1712
+5

Yes, because when you divide, you flip the fraction.

You need to flip the fraction in step one, which it doesn't.

tommarvoloriddle  Jul 25, 2019
#7
+9465
+4

If the dot is raised like this  ·  it is a multiplication symbol.

If the dot is on the floor like this  .  it is a decimal point.

7·8  means  "7 times 8"

7.8  means  "7 point 8"  which is  7  and  8 tenths

Jul 25, 2019
#8
+1712
+6

Which is basically 7 8/10

7 4/5

sorry I wanted to simplify.

tommarvoloriddle  Jul 25, 2019
#9
+1011
+2

So it Step 1 Thanks Guys

Nickolas  Jul 25, 2019
#10
+1712
+6

np bro

tommarvoloriddle  Jul 25, 2019