5/6 :100 *12=5/600*12=60/600=1/10
1)5*4=20(п)
Ответ:в клетки всего 20 попугаев.
0.77:1.4 = 0, 55
3, 17 + 0, 55 = 3, 72
3, 72 * 3, 5 = 13, 02о
13, 020 - 4, 216 = 8, 804
Ответ : 8, 804
11/12x24/55+3=2/5+3=2/5+3/1=2/5+15/5=17/5=3 2/5
3/8-2/3x27/32=3/8-7/16=6/16-7/16=-1/16
5 1/4+14/15x5/7=21/4+2/3=63/12+8/12=71/12=5 11/12
1/2x1/2:1=1/4x1/1=1/4
25x7/15:25/27=25/1x7/15x27/25=1/1x7/5x9/1=63/5=12 3/5
5/9x2 1/4:20=5/9x9/4x1/20=5/1x1/4x1/20=1/4x1/4=1/16