Question

Subtract the following Fractions. -7/8-1/6

Answer 1

Hi, do you know what the first step to solving this problem might be?

Answer 2

find a
common denominator

Answer 3

hello

Answer 4

Yes, do you know what that might be?

Answer 5

no

Answer 6

So, we'll have a common denominator of 24 if we multiply 8 by 3, and 6 by 4.

Understand so far?

Answer 7

24

Answer 8

yes

Answer 9

Alright, so because we multiplied the denominators, we must do the same to the numerators.
7*3=?
1*4=?

Answer 10

21 and 4

Answer 11

17/24

Answer 12

Yes, so if we make our new equivalent fractions we'll have.\[-\frac{ 21 }{ 24 }-\frac{ 4 }{ 24 }\]Subtract the numerators:\[-21-4=-25\]\[-\frac{ 25 }{ 24 }=1\frac{ 1 }{ 24 }\]Got it, or more explanation?

Answer 13

Put a negative in front of that mixed fraction. My bad.

Answer 14

\[-1\frac{ 1 }{ 24 }\]

Answer 15

one more?

Answer 16

Sure.

Answer 17

Blaize had 5/8 of a pound of turkey left over after a meal. He used 1/4 pount of it to make sandwiches for his family the next day. How many pounds of turkey are left? *

Answer 18

So, common denominator.

4*2=8
1*2=2

New fraction:\[\frac{ 2 }{ 8 }\]Subtract:\[\frac{ 5 }{ 8 }-\frac{ 2 }{ 8 }\]\[5-2=3\]\[\frac{ 3 }{ }\]

Answer 19

\[\frac{ 3 }{ 8 }\]The '8' didn't show up for whatever reason.

Answer 20

ok thanks

Answer 21

what grade are u in?

Answer 22

11th

Answer 23

one more?

Answer 24

im in 7th

Answer 25

sure

Answer 26

ok yay

Answer 27

Add the following fractions -2 3/8+(-4 1/2)

Answer 28

In the second mixed fraction, we need to make the '2' an '8', or our common denominator.
2*4=8
4/4=4
New fraction:\[\frac{ 4 }{ 8 }\]New equation:\[-2\frac{ 3 }{ 8 }+(-4\frac{ 4 }{ 8 })\]\[-2+(-4)=-6\]\[-3+(-4)=-7\]\[-6\frac{ 7 }{ 8 }\]