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WELCOME TO THIS PAGE INTENDED FOR STUDENTS AT THE UNIVERSITY OF THE WESTERN CAPE REGISTERED  FOR THE MODULE QSF 131:

WORKING WITH FRACTIONS : WITH AND WITHOUT CALCULATOR

Consider the following simple problem on mixed fractions:

Simplify:

With your SHARP EL-531WH calculator, there are two methods:

METHOD 1 (WITH THE FRACTION KEY)

4r1r16+3r3r10-5r7r8=1r39r80=

METHOD 2 ( WITH BRACKETS)

(4+1r16) + (3+3r10) – (5+7r8) = 3r39r80 =

IMPORTANT: REMEMBER TO OPEN AND CLOSE BRACKETS AFTER EVERY MIXED FRACTION!!!!

Without calculator, there are two methods:

METHOD 1 (WORKING WITH PROPER FRACTIONS)

(4+3-5) + () = 2 +

= 2 +

= 1 +

=

METHOD 2: (WORKING WITH IMPROPER FRACTIONS)

Convert all MIXED FRACTIONS to IMPROPER FRACTIONS:

NOTE:

1.                 REMEMBER

2.                 Use your fraction key on your calculator to convert an improper fraction to a mixed fraction, i.e. 65r16 = 1r39r80.

©  DESMOND DESAI, DMD EDU-HOME, 2010

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