how do you add fractions with negative numbers?
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To add the fractions with unlike denominators, rename the fractions with a common denominator. Since the denominators are the same, add the numerators.
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['Find the Least Common Denominator (LCD)', 'Find the equivalent fractions.', 'Add or subtract the fractions and add or subtract the whole numbers.', 'Write your answer in lowest terms.']
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['Find the Least Common Multiple of the denominators (which is called the Least Common Denominator).', 'Change each fraction (using equivalent fractions) to make their denominators the same as the least common denominator.', 'Then add (or subtract) the fractions, as we wish!']
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When subtracting negative fractions, you are, in effect, adding the positive complement of the negative fraction you are subtracting, because subtracting a negative number or fraction is the same as adding the positive of that negative fraction or number.
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['Things to remember:', 'Step 1: Find a common multiple of the denominators.', 'HINT: The easiest way to do this is multiply the denominators together.', 'Step 2: Multiply the fractions so that the denominators the same.', 'Step 3: Add or subtract the new fractions.', 'Step 4: See if you can simplify.']
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['Rewrite the equation as in "Keep, Change, Flip"', 'Keep the first fraction.', 'Change the division sign to multiplication.', 'Flip the second fraction by switching the top and bottom numbers.', 'Multiply all numerators together.', 'Multiply all denominators together.', 'Reduce the result to lowest terms.']
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Use the SUM function to add negative numbers in a range. Note: There is no SUBTRACT function in Excel. Use the SUM function and convert any numbers that you want to subtract to their negative values. For example, SUM(100,-32,15,-6) returns 77.
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['The calculator can be accessed on the left-hand side bar under Toolkit.', 'To enter a negative number on the calculator, use the. key. ... ', 'To enter a negative number like −3, you must use parentheses. The key sequence for −3 is:', 'You may be wondering which key to use on your keyboard for negative numbers.']
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If you only have a basic calculator, look for a button with a "+" sign above a "-" sign, which is often between the 0 and the decimal point. Press this button before the number button to make it a negative number.
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['Multiply the denominator (bottom) of the fraction by a number to make the denominator equal 100.', 'Multiply the numerator (top) of the fraction by the same number.', 'Take this new numerator and write a % sign after it.']
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Rule 3: Subtracting a negative number from a negative number – a minus sign followed by a negative sign, turns the two signs into a plus sign. So, instead of subtracting a negative, you are adding a positive. Basically, - (-4) becomes +4, and then you add the numbers. For example, say we have the problem -2 - –4.
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A negative fraction added to another negative fraction will result in a negative fraction as result. A negative fraction subtracted from another is the same thing as adding the positive complement of that fraction. Make the denominators (the bottom of the fraction) the same, if they are not already.
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['Find the smallest multiple (LCM) of both numbers.', 'Rewrite the fractions as equivalent fractions with the LCM as the denominator.']
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['Step 1: Apply the Negative Exponents Rule. Switch each exponent from negative to positive by flipping (finding the reciprocal of) its base. ... ', 'Step 2: Simplify. ... ', 'Step 3: Plug the answer choices into the equation. ... ', 'Step 4: Backplugging.']
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['Step 1: Find the least common denominator. Find the least common denominator (LCD) of the fractions. ... ', 'Step 2: Find the equivalent fraction. Find the equivalent fraction of each fraction so that they all have the LCD as the denominator.', 'Step 3: Subtract the new numerators. ... ', 'Step 4: Simplify if necessary.']
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Then stick the negative sign to your answer. When subtracting negative fractions, you are, in effect, adding the positive complement of the negative fraction you are subtracting, because subtracting a negative number or fraction is the same as adding the positive of that negative fraction or number.
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['You must have a common denominator.', 'To find the Least Common Denominator (LCD), take the least common multiple of the individual denominators.', 'Express each fraction as a new fraction with the common denominator, ... ', 'To add fractions with the same denominator:']