In one sentence, describe what the following article is about: If you are working with a negative fraction, it will have a minus sign in front of it. It is good practice to always put parentheses around a negative number so you know that the "" sign is referring to the number and not telling you to subtract two numbers. For example: (2/4) Square the fraction as you would normally by multiplying the numerator by itself and then multiplying the denominator by itself. Alternatively, you can simply multiply the fraction by itself. For example: (2/4)2 = (2/4) x (2/4) When a minus sign is present, the entire fraction is negative. When you square the fraction, you are multiplying two negative numbers together. Whenever two negative numbers are multiplied together, they make a positive number. For example: (-2) x (-8) = (+16) After you have squared the fraction, you will have multiplied two negative numbers together. This means that the squared fraction will be positive. Be sure to write your final answer without the negative sign. Continuing the example, the resulting fraction will be a positive number. (2/4) x (2/4) = (+4/16) Generally, the convention is to drop the "+" sign for positive numbers. The final step when doing any calculations with a fraction is to reduce it. Improper fractions must first be simplified into mixed numbers and then reduced. For example: (4/16) has a common factor of four. Divide the fraction through by 4: 4/4 = 1, 16/4= 4 Rewrite simplified fraction: (1/4)
Summary: Recognize the negative sign in front of the fraction. Multiply the fraction by itself. Understand that two negative numbers multiply to make a positive number. Remove the negative sign after squaring. Reduce the fraction to its simplest form.

Before you go, sit down and write a list of sites and cities that you absolutely must visit while you're in Italy. Some common destinations are the Vatican, the Duomo, the canals of Venice, the Tuscan countryside, and Cinque Terre, but yours will depend on your passions and dreams. If one of your must-sees is out of the way, it pays to plan ahead to be sure you don't miss it! If you're an architecture buff or a fashion follower, Milan is a must-see! The Cathedral and La Scala Opera House are architectural wonders, and the shopping districts offer incredible clothes and accessories at all price points. Rome was the center of the world for centuries, and few other cities can compete with it for historical sites. Stop in Rome to see extensive Roman ruins (including the Coliseum), Vatican City, and beautiful medieval streets and buildings. Florence is Michelangelo's hometown, and it has some of the most important art in Europe. Florence has an incredible array of museums and churches housing major art treasures, so if you plan to visit, budget for entry fees. If you are a student or under age 26, bring your school ID and a copy of your passport. You can often get discounts! Venice is known for its beautiful network of canals crisscrossing the center of the old city. It's worth the money to have a gondola ride through the canals--you can even share one with a stranger for a discount! Cinque Terre is a network of five small villages overlooking a breathtaking view of the mountains and sea. If you're interested in hiking and experiencing small-town life, this is a must visit. Don't forget to try the seafood! Most backpackers in Italy stick to the cities, but if you're up to do a little more research, you can try traveling through the Italian countryside. Tuscany is a great choice, and so is Umbria--both are known for beautiful vistas, medieval castles, and excellent food. If you do travel through rural areas, you may need to plan your overnight stays in advance. People in the countryside are much less likely to be able to speak English.
++++++++++
One-sentence summary -- Pick a list of must-see places. Visit Milan for beautiful architecture and great shopping. Try Rome for historical sites. Tour Florence to see great art. Choose Venice for the canals. Visit Cinque Terre for beautiful scenery and small-town life. Consider traveling in the countryside.

Problem: Article: Treat your Social Security card with as much respect and care as your birth certificate, tax records, and other confidential documents. Unless you're required to show it, keep the original card locked in a safe at home. If a professional entity requests the card, see if you can bring a photocopy instead to avoid losing the original. To defend against fires, floods, and other disasters, keep your card in a weatherproofed container. In most cases, entities requesting your SSN will not need the actual card, just the number. The safest way to relay the number is by committing it to memory, that way nobody can steal the original paperwork from your wallet, purse, or briefcase. To help you memorize your SSN, try reading it aloud or writing it down multiple times. Test yourself daily until you can recall it without a visual aid. When getting rid of confidential documents, make sure to run them through a cross-cut or confetti shredder. This is especially important for documents that list your Social Security number, like financial statements. For extra security, try burning your documents in a fireplace or pit. Some public and private organizations require your Social Security number to function properly. Most, however, have no use for it. Before giving your number to an organization, ask what they intend to use it for. When in doubt, only give your SSN to entities like your employer, the IRS, and banks. If an institution has a spot on their forms for your SSN, check to see if it's required or optional. Many places, like doctor's offices, collect the info but don't actually need it. At some point, everyone gets targeted by e-mails or phone calls requesting private information. Unless you explicitly requested an e-mail or phone call from the person in question, do not give them your SSN or other identifying information. Never click on links or download attachments from phishing e-mails, as they often contain malicious software that will harm your computer or steal your information. Look for signs that an e-mail is a scam, like a suspicious e-mail address or bad grammar. Look for signs that a phone call is a scam, like suspicious reward offers or a reluctance to describe the reason for calling.
Summary:
Lock your Social Security card in a safe. Memorize your SSN so you don't have to reference your card. Shred used documents that list your SSN. Ask why an organization needs your SSN before giving it to them. Look out for phishing e-mails and scam callers.