(2 1/6 - 2/3)*(1*7/15) = (2 1/6 - 4/6)*7/15 = (1 3/6)*7/15 = (1 1/2)*7/15 =
= 3/2*7/15 = 21/30 = 7/10 = 0,7
7/9*3/7d=1/3d
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<span>5321см=53м 21см
</span><span>7080см=708дм
</span><span>2м2>1000 см2
</span><span>7910ц>79т 1ц
</span><span>3600с>6мин
</span><span>425мин>7ч</span>
1)-0,03*(-5\9)=0,05
2)1,53:1,5=1,02
3)1,02-1,2=-0,18
4)0,05:(-0,18)=-5\18
5)-5\18-1=-23\18= -1 5\18