67 + 532 + 5325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325325324235436343564425653253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253253654456
1)-7/4 *3= 7/4 * 3/1= -21/4
2) 4/3 * (-21/4) = 4*(-21)/3*4 - 4 сокращаем и 21 сокращаем на 3 и получаем
7/1=7