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dalvyx [7]
3 years ago
14

Subtracting fractions with unlike denominators

Mathematics
1 answer:
lawyer [7]3 years ago
3 0

Answer:

3/12 or simplified 1/4

Step-by-step explanation:

First make the denominators the same. We can make 12 the common denominator. To make 3/4 have a denominator do the following:

Multiply the numerator and denominator by 3 since 4x3=12. The new number becomes 9/12.

Then subtract:

9/12-6/12=3/12  The numerator subtracts while the denominator stays the same.

We can simplify 3/12 to 1/4

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Solve negative 5 over 2, the whole multiplied by x minus 5 equals negative 55.
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Answer:

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Step-by-step explanation:

-  \frac{5}{2} x \:  - 5 = 55

Multiply through by the denominator (that is, 2)

= 2 \times ( -  \frac{5}{2} x) \:  - 5(2) = 55(2)

=  - 5x - 10 = 110

Collect like terms

- 5x \:  = 110 +10

- 5x = 120

Divide through by - 5x

\frac{ - 5x}{ - 5}  =  \frac{120}{ - 5}

x =  - 24

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Naily [24]

Answer:

Option e is correct one

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2 years ago
51 and 53 HELP PLS!!!!!!!
Gelneren [198K]
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