1дм=10см
1дм5см-9см=15см-9см=6см
А) 11/19 > 9|19
б) 6 34/35 < 8 17/35
в) 30/63 и 27/50
30/63 = 10/21= 500/1050
27/50 = 567/1050
вывод:30/63 < 27/50
г) 99/131 < 12/5 (12/5 = 2 2/5)
д) 3.1 > 3,073
е) 37,86 > 7,386
ж)0,02 > 0,0089
з) 12.903 > 12,9003
<span>(4.75-2 1/8) :0.8=(4.75-2.125):0.8=2.625:0.8=3.28125
(1-0.532): 13/20=0.468:0.65=0.72
12.375 :(3/4+0.75)12.375:(0.75+0.75)=12.375:1.5=8.25</span>