1)
решение:
155/100*25/31=5/4
3 29/30 :4/10=119/30 *10 /4=119/12
5/4+119/12=(15+119)12=134/12= 11 2/12=11 1/6
B=11 1/6
-b= - 11 1/6
2)решение
13 1/32-9 9/16=417/32-153/16=( 417-306)/32=114/32=3 15/32=3,5625
3,5625:27,75=0,13
0,13+1,375=1,505
-b=1.505
b= - 1.505
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Answers & Comments
1)
решение:
155/100*25/31=5/4
3 29/30 :4/10=119/30 *10 /4=119/12
5/4+119/12=(15+119)12=134/12= 11 2/12=11 1/6
B=11 1/6
-b= - 11 1/6
2)решение
13 1/32-9 9/16=417/32-153/16=( 417-306)/32=114/32=3 15/32=3,5625
3,5625:27,75=0,13
0,13+1,375=1,505
-b=1.505
b= - 1.505