1.5 Fraction Review.notebook
February 09, 2017
Warm Ups (1.5)
1) Evaluate the following:
a) 5.285 + 16.5
b) 13.623 - 4.49 c) 23.45 X 2.3
d) 587.43
0.5
2) Complete the table
Fraction
Decimal
0.455
1
1.5 Fraction Review.notebook
February 09, 2017
1.5 Fraction Review
Multiplication of Fractions
1) Cancel terms prior to multiplying (when possible)
2) Multiply reduced numerators and denominators 3) Reduce the answer to lowest terms.
Ex. a)
b)
c)
2
1.5 Fraction Review.notebook
February 09, 2017
Dividing with Fractions
1) To divide fractions, we multiply by the
reciprocal of the divisor.
"What we are dividing by, turn upside down and multiply."
"Keep, change, flip"
Ex a) b)
3
1.5 Fraction Review.notebook
February 09, 2017
Addition and Subtraction
1) We need an LCD (lowest common denominator)to
add or subtract fractions.
2) When we change a denominator, we
must change the numerator in the sameway.
Ex. a)
+
b) ­ HW: 1D ­Pg. 19 # 10, 11, 13
1P ­Pg. 203­204 # 1abc, 2abc, 4abc, 5abc, 8
4