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Published byPhebe Armstrong Modified over 7 years ago

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Pre-Algebra Bell Ringer 1. 10x – 5y = 2 Solve for y 2. m – n – 12 = p Solve for n 3. a – 4 < 3a + 18 4. 3x + 8 ≥ -22 – 7x

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Math 7 Bell Ringer 1. Write as an improper fraction 2. Write as a decimal 3. Write.345 as a fraction 4. Order from least to greatest: 0.82,,

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ADDING AND SUBTRACTING FRACTIONS

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Adding and Subtracting Fractions What are the parts of the fraction? Top number = numerator Bottom number = denominator Also, remember your integer rules!!!

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Adding and Subtracting Fractions When denominators are the SAME We will add the numerators and keep the common denominator. Write your answer in simplest form!

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Adding and Subtracting Fractions When denominators are DIFFERENT Find a “common denominator” in two ways: 1. Find the LCM of the denominators 2. Multiply the denominators Note: Whatever you do to the denominator, you MUST do to the numerator!

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Adding and Subtracting Fractions

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