Предмет: Математика, автор: Торвсемагущий

найдите найменьшее общее кратное чисел разложив их на простые множители 28 и42 21 и32,12,30и75.15.42и105.21.28и35

Ответы

Автор ответа: igir12370
0
1) 28=2*2*7; 42=2*3*7; НОК(28;42)=42*2=84; 2) 21=3*7; 32=2*2*2*2*2; НОК(21;32)=32*21=672; 3) 12=2*2*3; 30=2*3*5; 75=3*5*5; НОК(12;30;75)=75*2*2=300; 4) 15=3*5; 42=2*3*7; 105=3*5*7; НОК(15;42;105)=105*2=210; 5) 21=3*7; 28=2*2*7; 35=5*7; НОК(21;28;35)=28*3*5=420;
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