Question

срочно номера 447 448 449

Answer 1

1) 8/20= 2*4/5*4= 2/5
   35/56= 5*7/8/*7= 5/8
   42/48= 7*6/8*6= 7/8
 764/828= 191*4/207*4= 191/207
 792/891= 8*99/9*99= 8/9

2) 1/2= 1*24/2*24= 24/48
2/3= 2*16/3*16= 32/48
3/4= 3*12/4*12= 36/48
5/6= 5*8/8*8= 40/48
7/8= 7*6/8*6= 42/48
11/12= 11*4/12*4= 44/48
15/16= 15*3/16*3= 45/48
23/24= 23*2/24*2= 46/48

3)а) -1/2
б) -1/3
в) 2/3
г) 2/5
д)- 7/4
е) -12/7