Сравнить числа, найти их сумму и
разность:


1)13/20и7/20. 2)4/15и8/15; 3) 13/9и5/9;





4) 5/11 и 3/11 5) 1 5/12 и5/12; 6) 15/61и 9/61;




7) 7/33 и 28/33; 8) 4/27 и18/27; 9)19/25 и 13/25;




10)7 2/7 и 13/7 ; 11) 29/103 и 38/103; 12)107/152 и 213/152;





13) 15/143 и 29/143; 14) 11/201 и 5/201; 15) 1 1/9и24/9.


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