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ICSE Class 9 Answered

Arrange 5/8, 3/16, -1/4, and 17/32 in the descending order of their magnitudes. Also,  find the sum of the lowest and the largest of these rational numbers express result obtained as a decimal fraction correct to two decimal places. 
Asked by Sarojarongali | 12 Jun, 2019, 09:20: AM
answered-by-expert Expert Answer
5 over 8 comma 3 over 16 comma negative 1 fourth comma 17 over 32 space rightwards arrow space fraction numerator begin display style 5 cross times 4 end style over denominator begin display style 8 cross times 4 end style end fraction comma fraction numerator begin display style 3 cross times 2 end style over denominator begin display style 16 cross times 2 end style end fraction comma negative fraction numerator begin display style 1 cross times 8 end style over denominator begin display style 4 cross times 8 end style end fraction comma fraction numerator begin display style 17 end style over denominator begin display style 32 end style end fraction rightwards arrow fraction numerator begin display style 20 end style over denominator begin display style 32 end style end fraction comma fraction numerator begin display style 6 end style over denominator begin display style 32 end style end fraction comma negative fraction numerator begin display style 8 end style over denominator begin display style 32 end style end fraction comma fraction numerator begin display style 17 end style over denominator begin display style 32 end style end fraction A r r a n g i n g space i n space d e s c e n d i n g space o r d e r space rightwards arrow space fraction numerator begin display style 20 end style over denominator begin display style 32 end style end fraction comma fraction numerator begin display style 17 end style over denominator begin display style 32 end style end fraction comma fraction numerator begin display style 6 end style over denominator begin display style 32 end style end fraction comma negative fraction numerator begin display style 8 end style over denominator begin display style 32 end style end fraction S u m space o f space l o w e s t space a n d space l a r g e s t space o f space t h e s e space r a t i o n a l space n u m b e r s equals fraction numerator begin display style 20 end style over denominator begin display style 32 end style end fraction plus open parentheses negative fraction numerator begin display style 8 end style over denominator begin display style 32 end style end fraction close parentheses equals fraction numerator begin display style 12 end style over denominator begin display style 32 end style end fraction equals 3 over 8 equals fraction numerator 0.03 over denominator 0.08 end fraction
Answered by Renu Varma | 12 Jun, 2019, 10:18: AM

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