Объяснение:
№1
1) 5/8 + 1/2 = 5/8 + 4/8 = 9/8
2) 9/8 : 3/16 = 9/8 * 16/3 = 3/1 * 2/1 = 6/1 = 6
№2
1) 1. 2/7 + 1. 1/14 = 1. 4/14 + 1. 1/14 = 2. 5/14
2) 2. 5/14 * 14/15 = 33/14 * 14/15 = 33/15 = 11/5 = 2. 1/5
№3
1) 11/20 + 4/5 = 11/20 + 16/20 = 27/20
2) 81/100 : 27/20 = 81/100 * 20/27 = 3/5 * 1/1 = 3/5
№4
1) 5/16 + 3/8 = 5/16 + 6/16 = 11/16
2) 11/16 - 5. 1/16 = 11/16 - 4. 17/16 = -4. 6/16 =
-4. 3/8
№5
51/60 - 1/15 + 4/30 = 51/60 - 4/60 + 8/60 =
(51 - 4 + 8)/60 = 55/60 = 11/12
Відповідь:
Пояснення:
фото
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Answers & Comments
Объяснение:
№1
1) 5/8 + 1/2 = 5/8 + 4/8 = 9/8
2) 9/8 : 3/16 = 9/8 * 16/3 = 3/1 * 2/1 = 6/1 = 6
№2
1) 1. 2/7 + 1. 1/14 = 1. 4/14 + 1. 1/14 = 2. 5/14
2) 2. 5/14 * 14/15 = 33/14 * 14/15 = 33/15 = 11/5 = 2. 1/5
№3
1) 11/20 + 4/5 = 11/20 + 16/20 = 27/20
2) 81/100 : 27/20 = 81/100 * 20/27 = 3/5 * 1/1 = 3/5
№4
1) 5/16 + 3/8 = 5/16 + 6/16 = 11/16
2) 11/16 - 5. 1/16 = 11/16 - 4. 17/16 = -4. 6/16 =
-4. 3/8
№5
51/60 - 1/15 + 4/30 = 51/60 - 4/60 + 8/60 =
(51 - 4 + 8)/60 = 55/60 = 11/12
Відповідь:
Пояснення:
фото