. If you have fractions with whole numbers, changing them into improper fractions will make it easier to add. The numerators of your improper fractions will be larger than their denominators. For example, 6 3/8 + 9 1/24 will turn into 51/8 + 217/24. If the denominators are different, you'll need to write down the multiples of each denominator so you can find 1 that they have in common. For example, for the problem 51/8 + 217/24, list the multiples of 8 and 24 to find 24. Because the multiples of 8 include 8, 16, 24, 32, and 48 and the multiples of 24 include 24, 48, and 72, 24 is the lowest common multiple. The denominators should all become the lowest common multiple that you found. Multiply the whole fraction by a number to make the denominator the lowest common multiple. For example, to make the denominator for 51/8 become 24, multiply the whole fraction by 3. You should get 153/24. If the other fractions in your equation have different denominators, you'll also have to multiply them so they have the same denominator. If the fraction already has that as the denominator, you don't need to adjust the fraction. For example, if you're working with 217/24, you won't need to adjust the fraction since it already has the same denominator. You can add the numerators once the denominators are the same or if there were the same from the start. Once you've added the numerators, put the answer over the denominator. Avoid adding the denominators. For example, 153/24 +217/24 = 370/24. . If your numerator of your answer is larger than the denominator, you'll have to divide it to get a whole number. To finish making a mixed number, write down how many parts you have leftover. This will make the numerator which you can put over the same denominator. Keep reducing the fraction down until it's in its simplest form. For example, 370/24 will become 15 10/24 because 24 goes into 370 15 times and has 10 parts of 24 left over. 10/24 can be further reduced to 5/12 for a finished answer of 15 5/12.
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One-sentence summary -- Turn the mixed numbers into improper fractions Look for the lowest common denominator if necessary. Make the fraction equivalent if you need to change the denominators. Change all of the fractions in the problem to make them equivalent. Add the numerators but leave the denominator the same, these don't change. Simplify your answer

Still water is breeding grounds for mosquito larvae. Regularly empty all rain barrels, kiddie pools, pet water dishes, and other water containers. For puddles and other sources of water you can't pour out, add an insecticide targeted at killing mosquito larvae. Always read the warning label on insecticides to find out if pets or young children could be harmed by drinking the treated water. Products that use bacterial agents to kill the larvae, rather than chemicals, are typically safer for other animal life. These are sources of standing water, and therefore mosquito breeding grounds, that you may not have thought of. Eliminate clutter from your yard often, especially during rainy weather. Keeping your lawn well-mowed and your shrubs trimmed back reduces the chance that pools of dew or rainwater will be trapped. Water your garden only as much as needed, making the soil moist but not soaked or covered in puddles.
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One-sentence summary -- Empty or treat standing water. Clean out gutters and trash piles. Keep lawns and shrubs trimmed and free of pools.

You can buy sand in hardware stores, art stores, and in aquarium-supply stores. If you already have access to sand, you can use that instead, as long as it is light enough. Try to get the lightest color of sand you can find; white would be the best because it will allow the colors to show up better. You can use this method to tint sand at the beach and make brightly colored sandcastles with it. If you don't want to wait that long, you can dry the sand in a preheated oven at 200F (93C) for 5 to 10 minutes. When the sand is almost dry, take it out of the oven and let it finish air-drying for a few hours. Don't let the sand dry completely in the oven. If you do, the color may fade. Do not bake sand that's been colored with liquid watercolor.
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One-sentence summary -- Get some light-colored sand. Allow the sand to dry overnight.

Pour water that has just boiled over your Barbie's hair, or dip her head into boiled water for about 10 seconds. Be very careful when boiling and handling hot water, and avoid getting it on anything other than the Barbie's hair. Boiling water and handling boiled water should be performed by an adult. Children should get help from a parent or guardian for this step. If you cannot get adult supervision or you can't or don't want to boil water, you can simply use the warmest water from your sink. There's a chance your Barbie's curls won't last quite as long, but it should achieve about the same effect. Let your Barbie cool for a few minutes after applying hot water to the hair. Then put her into your freezer to allow the hair to cool and set. Leave your Barbie in the freezer for about 30-60 minutes, or until the hair is hardened/frozen, before removing it. Ensure that the doll isn't near open food items or anything else that could stick to it in the freezer. Set your Barbie on a bath towel or paper towel and allow the hair to thaw out and dry completely. Be prepared to wait several hours for this to happen, otherwise the curls will not hold. Start this process before bed and leave your Barbie's hair to dry overnight for an easy way to wait patiently before your final results. To speed up the drying process, you can also blot at the hair periodically with an absorbent towel. Just make sure you don't pull out any of the braids or curlers while doing so. When the Barbie's hair is dry, carefully undo the braids or remove the straws, foil, or pipe cleaners you used as curlers. Do this gently without straightening out the resulting curls. Remember to unfold the ends of pipe cleaners or aluminum foil, or remove the bobby pins from either end of a straw, before pulling them out. Take out your first braid or curler slowly and check to see if the hair is still damp. If it is, redo the braid or curl as best you can, and leave the whole head of hair to dry for longer before taking everything out.
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One-sentence summary --
Dip Barbie's head into hot water. Place your Barbie into the freezer. Allow the hair to dry completely. Pull your braids/curlers out gently.