1) 19,6*2 целых 1/5+(5,25* 1 целая 1/5-4,5*4/5) 2) (3 целых 1/3-1 целая 5/6):2 целых 1/7-1 целая 1/3*2,4. Created by katyar980. algebra-ru

3*2,4...

July 2022 1 9 Report

1) 19,6*2 целых 1/5+(5,25* 1 целая 1/5-4,5*4/5)
2) (3 целых 1/3-1 целая 5/6):2 целых 1/7-1 целая 1/3*2,4

Answers & Comments

Unikron 1)19.6*2 целых 1/5+(5.25*1 целая 1/5 - 4.5 *4/5)=196/10*11/5+(525/100*6/5-45/10*4/5)=1078/25+(126/20-18/5)=1078/25+(126/20-72/20)=1078/25+54/20=4312/100+270/100=4582/100=45,82
2)(3 целых 1/3-1 целая 5/6):2 целые 1/7- 1 целая 1/3*2.4=(10/3-11/6):15/7-4/3*24/10=(20/6-11/6):15/7-4/3*24/10=9/6:15/7-4/3*24/10=9/6*7/15-4/3*24/10=21/30-16/5=21/30-96/30=-75/30=-2 целых 15/30=-2.5

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