Pre-Algebra Bell Ringer 1. 10x – 5y = 2 Solve for y 2. m – n – 12 = p Solve for n 3. a – 4 < 3a x + 8 ≥ -22 – 7x
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,,
ADDING AND SUBTRACTING FRACTIONS
Adding and Subtracting Fractions What are the parts of the fraction? Top number = numerator Bottom number = denominator Also, remember your integer rules!!!
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!
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!
Adding and Subtracting Fractions