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Răspuns :

Utavalentina900

Răspuns:

f. 9/8+11/8=20/8

g. 13/10+31/10=44/10

h. 13/5+17/5=30/5

Alexandra5750

Răspuns:

f) 1×8+1/8=9/8

1×8+3/8=11/8

9+11/8=20/8=5/2

g)1×10+3/10=13/10

3×10+1/10=31/10

13+31/10=44/10=22/5

h)2×5+3/5=13/5

3×5+2/5=17/5

13+17/5=30/5=6

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