Ответы и объяснения

2013-12-23T12:55:25+04:00
29/75-4/75=25/75=1/3
1/3+5/12=4/12+5/12=9/12=3/4
Ответ : 3/4
2013-12-23T12:57:51+04:00
( 29/75 + 5/12) - 4/75 = 
29/75 +5/12 =  116/300 +125/300 =  241/300 
241/300 -4/75 = 241/300 -16/300 =  225/300 =  45/60 = 9/ 12 = 3/4