Question

am nevoie de ajutor. Rapid!!!​

Answer 1

Răspuns:

Explicație pas cu pas:

11/10 + 7/30 + 2/17 + 11/51 = 33/30 + 7/30 + 6/51 + 11/51 = 40/30 + 17/51

= 4/3 + 1/3 = 5/3

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1/11 + 1/23 + 9/22 + 21/46 = 2/22 + 9/22 + 2/46 + 21/46 = 11/22 + 23/46

= 1/2 + 1/2 = 1

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1/99 + 37/65 + 97/99 + 28/65 = 98/99 + 65/65 = 98/99 + 1 = 197/99