Question

помогите!!!срочно!!!
1)8,68:7=?
2)169,2:8=?
3)89,6:28=?
4)33,28:52=?
5)9,044:38=?
6)144,96:48=?
7)13:2=?
8)21:14=?
9)6:12=?
10)1:125=?
11)7,982:26=?
12)0,0432:36-?
Помогите пожалуйста! заранее спасибо!

Answer 1

Пошаговое объяснение:

$8,68:7=frac{217}{25}:frac{7}{1}=frac{217}{25}*frac{1}{7}=frac{31}{25}=1frac{6}{25}=1,24\\169,2:8= frac{846}{5}:frac{8}{1}=frac{846}{5}*frac{1}{8}=frac{846}{40}=frac{423}{20}=21frac{3}{20}=21,15\\89,6:28=frac{448}{5}:frac{28}{1} = frac{448}{5}*frac{1}{28}=frac{16}{5}=3frac{1}{5}=3,2\\33,28:52=frac{832}{25}:frac{52}{1}=frac{832}{25}*frac{1}{52}=frac{16}{25}=0,64\\9,044:38=frac{2261}{250}:frac{38}{1}= frac{2261}{250}*frac{1}{38}=frac{2261}{9500}=frac{119}{500} =0,238$

$144,96:48=frac{3624}{25}:frac{48}{1}=frac{3624}{25}*frac{1}{48}=frac{3624}{1200}=frac{151}{50}=3frac{1}{50}=3,02\\13:2=6,5\\21:14=3:2=1,5\\6:12=1:2=0,5\\1:125=1:frac{125}{1}=frac{125}{125}*frac{1}{125}=0,008\\7,982:26=frac{3991}{500}:frac{26}{1}=frac{3991}{500}*frac{1}{26}=frac{3991}{13000}=frac{307}{100}=3frac{7}{100}=3,07\\0,0432:36=frac{27}{625}:frac{36}{1}=frac{27}{625}*frac{1}{36}=frac{3}{625*4}=frac{3}{2500}=0,0012$