Объяснение:
№1
1) 1/2 : 4 = 1/2 * 1/4 = 1/8
2) 3/10 - 1/8 = 12/40 - 5/40 = 7/40
3) 7/40 : 1 3/4 = 7/40 : 7/4 = 7/40 * 4/7 = 1/10 * 1/1 = 1/10
4) 2/3 + 1/10 = 20/30 + 3/30 = 23/30
№2
1) 15 * 5/15 = 1 * 5/1 = 5/1 = 5
2) 3 3/8 * 4/27 = 27/8 * 4/27 = 1/2 * 1/1 = 1/2
3) 5 : 1/2 = 5 * 2/1 = 10/1 = 10
Ответ:
смотри на фото
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Answers & Comments
Объяснение:
№1
1) 1/2 : 4 = 1/2 * 1/4 = 1/8
2) 3/10 - 1/8 = 12/40 - 5/40 = 7/40
3) 7/40 : 1 3/4 = 7/40 : 7/4 = 7/40 * 4/7 = 1/10 * 1/1 = 1/10
4) 2/3 + 1/10 = 20/30 + 3/30 = 23/30
№2
1) 15 * 5/15 = 1 * 5/1 = 5/1 = 5
2) 3 3/8 * 4/27 = 27/8 * 4/27 = 1/2 * 1/1 = 1/2
3) 5 : 1/2 = 5 * 2/1 = 10/1 = 10
Ответ:
смотри на фото
Объяснение:
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