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Voydite
@Voydite
December 2021
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0,25:4+15,3:5+12,4:8+0,15:3 ПО ДЕЙСТВИЯМ БАЛЛАМИ НЕОБИЖУ
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AntonShur
1) 0,25:4=0,25*0,25=1/4*1/4=1/16
2) 15,3:5=1530/100:500/100=1530/100*100/500=153000/50000=153/50
3) 12,4:8=1240/100:800/100=1240/100*100/800=124000/80000=124/80=31/20
4) 0,15:3=15/100*100/300=1500/30000=15/300=3/60=1/20
5) 1/16+153/50+31/20+1/20=(1*100+153*32+31*80+1*80)/1600= (100+4896+2480+80)/1600=7556/1600=1889/400
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Answers & Comments
2) 15,3:5=1530/100:500/100=1530/100*100/500=153000/50000=153/50
3) 12,4:8=1240/100:800/100=1240/100*100/800=124000/80000=124/80=31/20
4) 0,15:3=15/100*100/300=1500/30000=15/300=3/60=1/20
5) 1/16+153/50+31/20+1/20=(1*100+153*32+31*80+1*80)/1600= (100+4896+2480+80)/1600=7556/1600=1889/400