HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 276
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hp40g+.book Page 2 Friday, December 9, 2005 1:03 AM Press to simplify the numerator. Press to select the entire fraction. Example 2 16-2 Press to simplify the selected fraction, giving the result shown at the right. Given that C = 2 45 + 3 12 - 20 - 6 3 write C in the form d 5 , where d is a whole number. Solution: In the Equation Writer, enter C by typing: 2 45 3 12 20 6 3 Press to select -6 3 . Press to select - 20 and to select 20. Now press , select FACTOR and press . Step-by-Step Examples
16-2
Step-by-Step Examples
Press
to simplify the
numerator.
Press
to select the
entire fraction.
Press
to simplify the
selected fraction, giving
the result shown at the
right.
Example 2
Given that
write
C
in the form
, where
d
is a whole number.
Solution:
In the Equation Writer, enter C by typing:
2
45
3
12
20
6
3
Press
to
select
.
Press
to select
and
to
select 20.
Now press
,
select
FACTOR
and
press
.
C
2
45
3
12
20
–
6
3
–
+
=
d
5
6
3
–
20
–
hp40g+.book
Page 2
Friday, December 9, 2005
1:03 AM