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frez [133]
3 years ago
8

Subtract and simplify your answer. 7/18-2/9

Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
4 0

Answer:

1/6.

Step-by-step explanation:

7/18−2/9=?

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(7/18, 2/9) = 18

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(7/18×11)−(2/9×22)=?

Complete the multiplication and the equation becomes

7/18−4/18=?

The two fractions now have like denominators so you can subtract the numerators.

Then:

7−4/18=3/18

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 3 and 18 using

GCF(3,18) = 3

3÷3/18÷3=1/6

Therefore:

7/18−2/9=1/6

bixtya [17]3 years ago
3 0

Answer:

Step-by-step explanation:

7/18-2/9=7/18-4/18=3/18=1/6

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Answer:

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Step-by-step explanation:

I attached a picture with the graph

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6 0
3 years ago
What is the surface area of this rectangular pyramid?
Alexxx [7]

Answer:

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Step-by-step explanation:

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1/2 (12m) (10m)= 60m^2

Next, find the surface area of the side triangles using the formula <em>1/2 (base) (height). </em>Use the width as the base.

1/2 (8m) (11m)= 44m^2

Last, add the surface area of each section. Make sure you add the area of each face.(we only solved for 1 of the front/ back triangles and 1 of the side triangles) To make it easier to understand I wrote out an equation to show how I added the surface areas.

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insens350 [35]

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