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StupidChild1
@StupidChild1
July 2022
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((17,65-9 1/4)*2,05-3,9*2/5): 2,9
2)
((3,86+4 3/25):2,1+10,2:8 1/2)*0,3
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Данка1986
((17,65-9 1/4)*2,05-3,9*2/5):2,9=5 2/5
1)17,65-9 1/4=17 65/100-9 1/4=8 65-25/100=8 40/100=8 2/5
2)8 2/5*2,05=42/5*205/100=861/50=17 11/50
3)3,9*2/5=39/10*2/5=39/25=1 14/25
4)17 11/50-1 14/25=16 61/50-1 14/25=15 61-28/50=15 33/50
5)15 33/50:2,9=783/50*10/29=27/5=5 2/5
((3,86+4 3/25):2,1+10,2:8 1/2)*0,3=1,5
1)3,86+4 3/25=3 86/100+4 3/25=7 86+12/100=7 98/100=7 49/50
2)7 49/50:2,1=399/50*10/21=19/5=3 4/5
3)10,2:8 1/2=102/10:17/2=102/10*2/17=6/5=1 1/5
4)3 4/5+1 1/5=4 5/5=5
5)5*0,3=1,5
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Answers & Comments
1)17,65-9 1/4=17 65/100-9 1/4=8 65-25/100=8 40/100=8 2/5
2)8 2/5*2,05=42/5*205/100=861/50=17 11/50
3)3,9*2/5=39/10*2/5=39/25=1 14/25
4)17 11/50-1 14/25=16 61/50-1 14/25=15 61-28/50=15 33/50
5)15 33/50:2,9=783/50*10/29=27/5=5 2/5
((3,86+4 3/25):2,1+10,2:8 1/2)*0,3=1,5
1)3,86+4 3/25=3 86/100+4 3/25=7 86+12/100=7 98/100=7 49/50
2)7 49/50:2,1=399/50*10/21=19/5=3 4/5
3)10,2:8 1/2=102/10:17/2=102/10*2/17=6/5=1 1/5
4)3 4/5+1 1/5=4 5/5=5
5)5*0,3=1,5