All categories

3 years ago

Explain how you can use reasoning to compare two fractions with the same denominator

1 answer:

7 0

When two fractions have the same denominator, you can compare which fraction is greater by just comparing the numerators.
For example, if you have 2/5 and 3/5, the denominators are the same. So you can just look at the numerators. 3 is greater than 5, so 3/5 is greater than 2/5.

The reasoning to this is that the two numbers are divided by the same number (5), so you can compare the original numbers (numerators).

You might be interested in

Abby and her mom are driving on a road trip, and Abby is watching the milepost signs go by. Each hour she writes down which mile

OleMash [197]

Its linear. I looked it up. ;)

5 0

3 years ago

Read 2 more answers

3x + ky = 8

sattari [20]

Answer:

(a): x is 3 and ky is -1

(b): k is -2

Step-by-step explanation:

Let: 3x + ky = 8 be equation (a)

x - 2 ky = 5 be equation (b)

Then multiply equation (a) by 2:

→ 6x + 2ky = 16, let it be equation (c)

Then equation (c) + equation (b):

${ \sf{(6 + 1)x + (2 - 2)ky = (16 + 5)}} \\ { \sf{7x = 21}} \\ { \sf{x = 3}}$

Then ky :

${ \sf{2ky = 3 - 5}} \\ { \sf{ky = - 1}}$

${ \bf{y = \frac{1}{2} }} \\ { \sf{ky = - 1}} \\ { \sf{k = - 2}}$

4 0

3 years ago

A price for a pair of shoes is 400. the price is decreased by 30%. what is the new price?

sukhopar [10]

The answer is 280 because if you multiply 400 by .3 you get 120 and if you subtract 120 from 400 you get 280

5 0

3 years ago

Read 2 more answers

what if 7 dogs are in a room a man with a dog coms in and takes two and leaves his which has 3 pups how many dong are there

aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

7 - 2 + 3 = 8

5 0

3 years ago

Read 2 more answers

Bobby biked 12/3 hours on monday 21/3 hours on tuesday and 22/3 hours on wednesday. what is the total number of hours bobby spen

serg [7]

The fractions you're given can be simplified down, so you get (12 ÷ 3) 4 hours on Monday, (21 ÷ 3) 7 hours on Tuesday, and (22 ÷ 3) 7 1/3 hours on Wednesday. You can now add these up and get your answer as 18 1/3 hours, or 18.33.

I hope this helps!

8 0

3 years ago