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Solution 1.2:4b

From Förberedande kurs i matematik 1

Revision as of 10:32, 19 September 2008 by Tek (Talk | contribs)
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Multiply top and bottom of the double fraction by the reciprocal of the denominator,

8372=83387238=7238.

The numerator and denominator on the right-hand side do not have a common factor, so the answer is

7238=7328=2116.

Note: It is also possible to learn a quick formula for double fractions which says that when the expression is rewritten with just one fraction sign, the denominators in the partial fractions change place,

8372=3728.