1)474-307=164,
2)315-164=151,
3)307-151=156,
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1т=1000кг
1ц=100кг
60*1000+8*100=60000+800=60800кг
( 6 1/8 - 1,75 ): (9- 2,2 ( 5 6/11 - 3,5) ) * 1 2/7 = 1 1/4
1) 6 1/8 - 1 75/100 = 6 1/8 - 1 3/4 =
=6 1/8 - 1 6/8 =4 3/8
2) 5 6/11 - 3,5 = 5 6/11- 3 1/2 =
= 5 12/22 - 3 11/22 = 2 1/22
3) 2,2 * 2 1/22 = 22/10 * 45/22 =
= 45/10 = 9/2 = 4 1/2
4) 9 - 4 1/2 = 4 1/2
5) 4 3/8 : 4 1/2 = 35/8 : 9/2 =
= 35/8 * 2/9 = (35*1) / (4*9) = 35/36
6) 35/36 * 1 2/7 = 35/36 * 9/7 =
=(5*1)/ (4*1) =5/4 = 1 1/4