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Solution 1.2:4b

From Förberedande kurs i matematik 1

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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

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