Математика: 1/3: 3,7/10: 7,2/5: 2/3,1/100: 1/100,4/5: 2/5,7: 1/4,8: 2/3,1/5: 1/10

шахноза31

19.10.2020 07:03

Математика

Есть ответ 👍

1/3: 3,7/10: 7,2/5: 2/3,1/100: 1/100,4/5: 2/5,7: 1/4,8: 2/3,1/5: 1/10

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volgakup

Математика

4,4(78 оценок)

1 1 * 3 3 : 3 = 3 * 1 = 1 7 7 7 7 * 10 7 10 : 7,2 = 10 : 2 10 = 10 * 27 = 27 = 0,26

shakmatovakseni

Математика

4,6(75 оценок)

(6 1/2 - 4 1/4) : 2 1/2 = 9/10 1) 6 1/2 - 4 1/4 = 6 2/4 - 4 1/4 = 2 1/4 2) 2 1/4 : 2 1/2 = 9/4 : 5/2 = 9/4 * 2/5 = 9/10 (4 8/15 - 1 1/3) * 1 7/8 = 6 1) 4 8/15 - 1 1/3 = 4 8/15 - 1 5/15 = 3 3/15 = 3 1/5 2) 3 1/5 * 1 7/8 = 16/5 * 15/8 = 6 (2 2/3 + 1 5/6) : 1 1/2 = 3 1) 2 2/3 + 1 5/6 = 2 4/6 + 1 5/6 = 3 9/6 = 4 3/6 = 4 1/2 2) 4 1/2 : 1 1/2 = 9/2 : 3/2 = 9/2 * 2/3 = 3 (3 1/6 - 2 7/15) : 1 2/5 = 1/2 1) 3 1/6 - 2 7/15 = 3 5/30 - 2 14/30 = 2 35/30 - 2 14/30 = 21/30 = 7/10 2) 7/10 : 1 2/5 = 7/10 : 7/5 = 7/10 * 5/7 = 1/2 (1 2/3 + 2 4/9) : (4 26/27 - 2 2/9) = 1 1/2 1) 1 2/3 + 2 4/9 = 1 6/9 + 2 4/9 = 3 10/9 = 4 1/9 2) 4 26/27 - 2 2/9 = 4 26/27 - 2 6/27 = 2 20/27 3) 4 1/9 : 2 20/27 = 37/9 : 74/27 = 37/9 * 27/74 = 3/2 = 1 1/2 (6 1/24 - 2/3) : (3 1/2 + 1 7/8) = 1 1) 6 1/24 - 2/3 = 6 1/24 - 16/24 = 5 25/24 - 16/24 = 5 9/24 = 5 3/8 2) 3 1/2 + 1 7/8 = 3 4/8 + 1 7/8 = 4 11/8 = 5 3/8 3) 5 3/8 : 5 3/8 = 43/8 : 43/8 = 43/8 * 8/43= 1