Rational Numbers Adding Like Fractions Lessons 5.1 and 5.2: Rational Numbers Adding Like Fractions Rational Number: Any number that can be written as a fraction. Any number EXCEPT a decimal that goes on forever and does not repeat. Examples of rational numbers: 3, -12, 8.172, Following is Irrational (NOT Rational) 3.45092840587623. . .

Write the mixed number as an improper fraction 1) 2) Write the fraction as a decimal 1) = 0.6 (numerator divided by denominator) 2) 3) = -1.875 4)

Write as a fraction or mixed number 1) 0.23 2) –2.025

Like Fractions have the same denominator To add or subtract like fractions: 1) Add or subtract the numerators 2) Keep the denominator 3) Write in simplest form.

Examples: Simplify 1) 2) Or

Homework: p. 222, #28-42 evens p. 227, #3 - 8

Homework : p. 227-228, #11-35 odds, # 39, 41, 43