1 13/15 * 2 4/7 - 5 2/5 : 3 =
= 28/15*18/7 - 27/3 =
4 4/5 - 1 4/5 = 3 - ОТВЕТ
11*4=10*4+4=44
7*12=7*10+2*7=84
16:2+4:2=8+2=10
18:9+27:3=2+9=11
13*5=10*5+3*5=65
6*14=10*6+4*6=84
0:7+21:7=0+3=3
21:3+18:6=7+3=10
А) 2549, 390; 2549,38; 2549,4
Б) 999,957; 999,96; 1000
В) 9218,004; 9218,00; 9218,0
18/30=3/5
15/18=5/6
28/40=14/20=7/10
10/45=2/9
49/105=7/15
27/36=9/12