In one sentence, describe what the following article is about: In order to determine how much clean water you'll need to prepare, you first need to gently pour the bowl's current water and the fish into a clean, soap-free bucket or container. Then, mark the water level on the outside of the bucket. When you clean your fish bowl, you'll need to replace 40-50% of the total volume of water that it holds. After you've marked the initial water level, use a clean cup to start putting the water back into your bowl. Once you've removed about half of the water, mark the new water level on the outside of the bucket and transfer the fish back into the bowl with a net. Once your fish is safely back in its bowl, rinse out the container you were just using. Don't use soap to clean out the container, because this will be harmful to your fish. Fill the container back up to the halfway mark you made with fresh water. At this point, read and follow the directions on the label of your water treatment kit. Add the appropriate number of drops to the water that's in the container. You can find water treatment for fish bowl water at any major pet store. The treatment will eliminate chlorine, chloramines and other substances that are toxic to fish. This is a necessary step in ensuring that the water will have the proper balance of chemicals to keep your fish healthy. Cover the container with a lid to prevent airborne contaminants from making their way into the water. Let the container sit overnight so that the water can "age" and reach room temperature.
Summary: Figure out how much water your bowl holds. Figure out how much new water you'll need. Fill the clean container with fresh water. Treat the water using a water treatment kit. Cover the container and let the water age overnight.

Let's say we want to convert the binary number 100110112 to decimal. First, write it down. Then, write down the powers of two from right to left. Start at 20, evaluating it as "1". Increment the exponent by one for each power. Stop when the amount of elements in the list is equal to the amount of digits in the binary number. The example number, 10011011, has eight digits, so the list, with eight elements, would look like this: 128, 64, 32, 16, 8, 4, 2, 1 Now, just write 10011011 below the numbers 128, 64, 32, 16, 8, 4, 2, and 1 so that each binary digit corresponds with its power of two. The "1" to the right of the binary number should correspond with the "1" on the right of the listed powers of two, and so on. You can also write the binary digits above the powers of two, if you prefer it that way. What's important is that they match up. Draw lines, starting from the right, connecting each consecutive digit of the binary number to the power of two that is next in the list above it. Begin by drawing a line from the first digit of the binary number to the first power of two in the list above it. Then, draw a line from the second digit of the binary number to the second power of two in the list. Continue connecting each digit with its corresponding power of two. This will help you visually see the relationship between the two sets of numbers. Move through each digit of the binary number. If the digit is a 1, write its corresponding power of two below the line, under the digit. If the digit is a 0, write a 0 below the line, under the digit. Since "1" corresponds with "1", it becomes a "1." Since "2" corresponds with "1," it becomes a "2." Since "4" corresponds with "0," it becomes "0." Since "8" corresponds with "1", it becomes "8," and since "16" corresponds with "1" it becomes "16." "32" corresponds with "0" and becomes "0" and "64" corresponds with "0" and therefore becomes "0" while "128" corresponds with "1" and becomes 128. Now, add up the numbers written below the line. Here's what you do: 128 + 0 + 0 + 16 + 8 + 0 + 2 + 1 = 155. This is the decimal equivalent of the binary number 10011011. Now, all you have to do is write 15510, to show that you are working with a decimal answer, which must be operating in powers of 10. The more you get used to converting from binary to decimal, the more easy it will be for you to memorize the powers of two, and you'll be able to complete the task more quickly. You can use this method even when you want to covert a binary number such as 1.12 to decimal. All you have to do is know that the number on the left side of the decimal is in the units position, like normal, while the number on the right side of the decimal is in the "halves" position, or 1 x (1/2). The "1" to the left of the decimal point is equal to 20, or 1. The 1 to the right of the decimal is equal to 2-1, or .5. Add up 1 and .5 and you get 1.5, which is 1.12 in decimal notation.
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One-sentence summary -- Write down the binary number and list the powers of 2 from right to left. Write the digits of the binary number below their corresponding powers of two. Connect the digits in the binary number with their corresponding powers of two. Write down the final value of each power of two. Add the final values. Write the answer along with its base subscript. Use this method to convert a binary number with a decimal point to decimal form.

Problem: Article: Since butterflies can't chew their food, they need to drink the juices. Fruit that just ripe or fruit that is starting to get mushy is the best to keep in your feeders. When it comes to feeding butterflies, the softer the fruit, the easier it is to eat. Butterflies aren't picky when it comes to the fruit you leave out. Some commonly used fruits are watermelons, bananas, pineapple, oranges, and peaches. Experiment with different fruit to see what species you attract. A butterfly proboscis can't penetrate the thick peels of fruit. Use a sharp knife to slice the fruit open so the inside flesh is easier to eat and drink. In case the fruit still isn't easy for a butterfly to eat, making multiple slits in the flesh of the fruit gives a space for the juice to collect. Using the same knife as before, make shallow cuts into each piece of fruit you're leaving out. You can also scrape the fruit or stab multiple holes into it with the tines of a fork for a similar effect. Fruit left out overnight may attract raccoons or other destructive mammals to your yard. Store fruit in a cool place like a garage or shed overnight and put it back in the morning. As the fruit keeps rotting, it will get softer and easier for the butterflies to eat. Replace the fruit once the fruits have turned black or moldy. If you save the fruit, cut 18 inch (3.2mm) into the fruit with a knife or fork each day so there is easy access to the juices.
Summary:
Pick fruit that is ripe or overripe. Cut the fruit into quarters to expose their flesh. Make slits in the piece of fruit so the butterflies can get the juice. Move the fruit at night to prevent unwanted pests.