ответ:2/3; 2 3/4; 1 2/5; 8 1/13; 4,5; 1 7/9
Пошаговое объяснение:
8/27×9/7:4/7=8/21×7/4=8/12=2/3;
11/12:7/24:22/21=11/12×24/7×21/24=11/4=2 3/4;
8/3:24/35:25/9=8/3×35/24×9/25=7/5=1 2/5;
21:13/5=21×5/13=105/13=8 1/13;
121/28×5/23×19/7=4,5
54/19×19/9×8/27=16/9=1 7/9
ответ:2/3; 2 3/4; 1 2/5; 8 1/13; 4,5; 1 7/9
Пошаговое объяснение:
8/27×9/7:4/7=8/21×7/4=8/12=2/3;
11/12:7/24:22/21=11/12×24/7×21/24=11/4=2 3/4;
8/3:24/35:25/9=8/3×35/24×9/25=7/5=1 2/5;
21:13/5=21×5/13=105/13=8 1/13;
121/28×5/23×19/7=4,5
54/19×19/9×8/27=16/9=1 7/9