Дробь к нок. 1) 1/4 и 1/10 2)1/6 и 1/9 3) 1/10 - вопрос №3612713114110216193110125413015051 от katja0709 16.09.2022 20:10

Question

Математика: Дробь к нок. 1) 1/4 и 1/10 2)1/6 и 1/9 3) 1/10 и 1/25 4)1/30 и 1/50 5) 1/70 и 1/60

katja0709 · Answer

1) 4 = 2 * 2 10 = 2 * 5 НОК = 2 * 2 * 5 = 20
1/4 = 5/20 и 1/10 = 2/20

2) 6 = 2 * 3 9 = 3 * 3 НОК = 2 * 3 * 3 = 18
1/6 = 3/18 и 1/9 = 2/18

3) 10 = 2 * 5 25 = 5 * 5 НОК = 2 * 5 * 5 = 50
1/10 = 5/50 и 1/25 = 2/50

4) 30 = 2 * 3 * 5 50 = 2 * 5 * 5 НОК = 2 * 3 * 5 * 5 = 150
1/30 = 5/150 и 1/50 = 3/150

5) 70 = 2 * 5 * 7 60 = 2 * 2 * 3 * 5 НОК = 2*2*3*5*7 = 420
1/70 = 6/420 и 1/60 = 7/420