Question

1) 1 5/18 - 11/12 +23/36 + 1 7/10 + 25 / 2 1/2 * 2 39/50; 2) 49 1/2 / (56 13/21 - 27 5/6 + 3 1/2 - 23 2/7) * (28 - 22 8/33); 3) 1 / 1/7 + 1/2 * 1 29/44 + 50 7/24 +1 31/33 * 2 - 29 1/4; 4) 30 1/9 - 2 7/18 / 1/8 + ( 60 8/15 - 60 1/3 ) * (7 41/44 + 19 9/11) + 17 1/4; 5) 16/49 + 38 17/98 - ( 14 29/48 - 1/2 * 1 6/7 / 1/10 * 1 2/5) / 7/16.

Answer 1

Выражение: 1 5//18-11//12+23//36+1 7//10+(25//2 1//2)*(2 39//50)   ответ: 971//25   Решаем по действиям: 1. 1 5//18=23//18   1 5//18=(1*18+5)//18   1.1. 18+5=23 2. (23//18)-(11//12)=(13//36) 3. (13//36)+(23//36)=1 4. 1 7//10=17//10   1 7//10=(1*10+7)//10   4.1. 10+7=17 5. 1+(17//10)=(27//10) 6. (25//2)+(1//2)=13 7. 2 39//50=139//50   2 39//50=(2*50+39)//50   7.1. 2*50=100   7.2. 100+39=139 8. 13*(139//50)=(1807//50) 9. (27//10)+(1807//50)=(971//25)