anonymous
  • anonymous
Subtract the following Fractions. -7/8-1/6
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Hi, do you know what the first step to solving this problem might be?
anonymous
  • anonymous
find a common denominator
anonymous
  • anonymous
hello

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More answers

anonymous
  • anonymous
Yes, do you know what that might be?
anonymous
  • anonymous
no
anonymous
  • anonymous
So, we'll have a common denominator of 24 if we multiply 8 by 3, and 6 by 4. Understand so far?
anonymous
  • anonymous
24
anonymous
  • anonymous
yes
anonymous
  • anonymous
Alright, so because we multiplied the denominators, we must do the same to the numerators. 7*3=? 1*4=?
anonymous
  • anonymous
21 and 4
anonymous
  • anonymous
17/24
anonymous
  • anonymous
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?
anonymous
  • anonymous
Put a negative in front of that mixed fraction. My bad.
anonymous
  • anonymous
\[-1\frac{ 1 }{ 24 }\]
anonymous
  • anonymous
one more?
anonymous
  • anonymous
Sure.
anonymous
  • anonymous
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? *
anonymous
  • anonymous
So, common denominator. 4*2=8 1*2=2 New fraction:\[\frac{ 2 }{ 8 }\]Subtract:\[\frac{ 5 }{ 8 }-\frac{ 2 }{ 8 }\]\[5-2=3\]\[\frac{ 3 }{ }\]
anonymous
  • anonymous
\[\frac{ 3 }{ 8 }\]The '8' didn't show up for whatever reason.
anonymous
  • anonymous
ok thanks
anonymous
  • anonymous
what grade are u in?
anonymous
  • anonymous
11th
anonymous
  • anonymous
one more?
anonymous
  • anonymous
im in 7th
anonymous
  • anonymous
sure
anonymous
  • anonymous
ok yay
anonymous
  • anonymous
Add the following fractions -2 3/8+(-4 1/2)
anonymous
  • anonymous
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:\[-2\frac{ 3 }{ 8 }+(-4\frac{ 4 }{ 8 })\]\[-2+(-4)=-6\]\[-3+(-4)=-7\]\[-6\frac{ 7 }{ 8 }\]

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