Do you have any info on adding and dividing fractions?

Answers

Answer 1
Answer: When you add fractions, you NEED to have the same denominator.

When you divide fractions, you do NOT need to have the same denominator.

(a)/(c) + (b)/(c) = \boxed{\bf{(a+b)/(c)}}

(a)/(b) / (c)/(d) = (a)/(b) * (d)/(c) = \boxed{\bf{(ad)/(bc)}}

a, b, c, and d are variables. You can replace them with any number.
Answer 2
Answer: adding and dividing fractions:

To add (and subtract) fractions, we need the same denominator. If both fractions that you are adding (or subtracting) do not have the same denominator, you will have to find the least common denominator of both of them.
If the fractions are:
(2)/(3) + (1)/(2)
3 × 1 = 3                              2 × 1 = 2
3 × 2 = 6                              2 × 2 = 4
                                            2 × 3 = 6
The least common denominator is 6
(2*2)/(3*2)(1*3)/(2*3)
(4)/(6) + (3)/(6)(7)/(6) or 1(1)/(6)

For diving fractions, you do not need common denominators
You can multiply the first fraction by the second fraction's reciprocal.

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A Pudding recipe calls for 0.355 liter of milk. Nati has 0.5 liter of milk at home. Does she have enough milk for the pudding recipe?

Answers

Yes because she has 0.500 liters of milk and only needs 0.355

How do you find the y intercept

Answers

Depends on if you are going off of a graph or an equation. In a graph, it is where a line crosses the y-axis. In an equation, it is the constant.
It is the vertical line on a graph. X is horizontal

Pedro mixes 3/4 teespoon of plant food into each gallong of water.How much teaspoons of plant food should Pedro mix into 5 gallons of water

Answers

Work:

1 gallon of water requires 3/4 teaspoon of plant food, so multiply 3/4 by 5

3/4  ×  5

Make 5 into a fraction

3/4  ×  5/1

Multiply the denominator by the denominator and the numerator by the numerator

 3   ×   5            15
----     ----    =   ------
 4   ×   1             4

15/4  is an improper fraction, so make it a mixed fraction

15/4  =  3 and 3/4

Answer:

Pedro should mix 15/4  teaspoons or 3 and 3/4  teaspoons  of plant food into 5 gallons of water.
we need to do 3/4x5. 3/4 is the same as 0.75. 0.75x5= 3.75. If you put that back into a fraction it is 3 and 3/4. This means pearl needs to mix 3 and 3/4 teaspoons of plant food into the water.

Why does 2^-1(6x-12) equal 3x-6?

Answers

2^-1 = 1/2 : . 1/2 (6x-12) =1/2* 6x - 1/2* 12 Basically ure dividing everything inside the brackets by two. Or multiplying by a half which is essentially the same thing.

A pipe is leaking at 1.5 cups per day. how many gallons per week is the pipe leaking?

Answers

Since there is 16 cups in a US gallon, and there is 7 days in a week. First, you would multiply 1.5 times 7 getting 10.5 cups. But since that is not enough cups to be a gallon the division equation would look like this, 10.5/16 = ?. You can simplify it down to 5.25/8. Then, you get your answer of 0.65625 gallons.

13 = 2f + 5
i don't know how to solve this

Answers

Simplifying13 = 2f + 5
 Reorder the terms:13 = 5 + 2f
 Solving13 = 5 + 2f
 Solving for variable 'f'.
 Move all terms containing f to the left, all other terms to the right.
 Add '-2f' to each side of the equation.13 + -2f = 5 + 2f + -2f
 Combine like terms: 2f + -2f = 013 + -2f = 5 + 013 + -2f = 5
 Add '-13' to each side of the equation.13 + -13 + -2f = 5 + -13
 Combine like terms: 13 + -13 = 00 + -2f = 5 + -13-2f = 5 + -13
 Combine like terms: 5 + -13 = -8-2f = -8
  Divide each side by '-2'.f = 4
 Simplifyingf = 4

SO, f = 4

13 = 2 
× 4 + 5

Hope I helped:P