Question

efectuați adunările ​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

2/5 + 1/10 + 1/2 = 4/10 + 1/10 + 5/10 = 10/10 = 1

b)

1/6 + 1/8 + 5/24 = 4/24 + 3/24 + 5/24 = 12/24 = 1/2

c)

1/2 + 5/4 + 7/12 = 6/12 + 15/12 + 7/12 = 28/12 = 7/3

e)

3/20 + 31/20 + 3/10 = 34/20 + 3/10 = 17/10 + 3/10 = 20/10 = 2

f)

2/7 + 4/3 + 5/2 = 12/42 + 56/42 + 105/42 = 173/42

g)

4/9 + 6/5 + 2/45 = 20/45 + 54/45 + 2/45 = 76/45

i)

9/8 + 11/6 + 7/24 = 27/24 + 44/24 + 7/24 = 78/24 = 39/12

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te las sa-l faci singur pe j)