What is the sum of 2/3+(-1/3)

Mathematics

2 answers:

Kipish [7]3 years ago

6 0

Answer:

1/3

Step-by-step explanation:

You can rewrite the equation like so:

2/3 + (-1/3)

2/3 - 1/3

The denominators are the same so you don't need to worry about that:

2/3 - 1/3 = 1/3

1/3 is your answer

Hope this helps!

Anuta_ua [19.1K]3 years ago

3 0

Answer:

2/3+(-1/3)= 0.333

Step-by-step explanation:

Because I know math

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A glass contains alcohol and water in the ratio 1:4. A second glass contains the same quantity of liquid, but this time the rati

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Answer:

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Step-by-step explanation:

So to solve this problem, you have to understand what the ratio 1:4 and 2:3 means. The 1:4 ratio in the first equation means that for "each unit of alcohol" there is 4 of those units of water. So let's say I had 2 gallons of alcohol and mixed it with 8 gallons of water. This means for each gallon of alcohol, there is 4 gallons of water, or in other words a 1:4 ratio. This can be described as a percentage as well. For each 5 gallons there are 4 gallons of water, and 1 gallon of alcohol or <em>20%</em> is alcohol. So let's just say that x=alcohol and y=water, this means that: $x+y=c$ where c is the total amount in the glass. This means that: $x=0.20c$

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