Transcript fractions parts of a WHOLE Created by: C. Horejsi Fractions of a Dividing a whole to make fractions: 1/2 1/4 1/8 1/16 1/32 1/64 1/128 1/256 Smaller & smaller.

fractions
parts of a WHOLE
Created by:
C. Horejsi
Fractions
of a
Dividing a whole to make
fractions:
1/2
1
1/4
1/8
1/16
1/32
1/64 1/128
1/256
Smaller
& smaller
9 parts = 1 whole
9/9 = 1
9 out of 9 parts are shaded
A Dozen =12
1/3 of a dozen = 4
4
3)12
2/3 of a dozen is 8
A Dozen Donuts
If you ate ¼ (one-fourth) dozen donuts,
then you ate 3.
¼ means you divide the whole amount into 4 groups
3
4)12
Comparing Fractions
If the numerator is 1 on the fractions,
then compare the denominators:
1
2
1
4
1
8
0ne-half is larger than one-fourth and one-fourth is larger than one-eighth.
Draw Pictures
Which fraction is larger?
5
8
6
or
9
Shade the
parts of each
fraction and
compare !
Use the “Butterfly”
Which fraction is larger?
45
42
5
6
7
9
Multiply 6 x 7 and write the product above the 7,
then multiply 9 x 5 and write that product above
the 5. Compare the products; which one is the
largest number? 45 is larger than 42,
so 5/6 is larger than 7/9.
Adding Fractions
If the denominator is the same; then add the
numerators.
2
7
+
3
7
=
5
7
Improper Fractions
Top Heavy :
Numerator is larger than the denominator:
9
4
two and one-fourth
2¼
Improper Fractions
Numerator is larger than the denominator:
9
4
Divide the numerator by
the denominator:
2¼
4) 9
-8
1
Remainder 1 is used
in the quotient as a
fraction. The
remainder goes over
the divisor to make
¼.
Improper Fractions
Numerator is larger than the denominator:
9
4
2¼
4) 9
-8
1
Easy way to remember
which number goes where!
The cowboy rides the horse!
The cowboy goes into the house.
The horse stays outside the house.