Question

Exercițiul 8 și 10 repede va rog!!

Answer 1

8. a) ( 4/15 + 11/15) + (9/10 + 41/10) = 15/15 + 50/10 = 1 + 5 = 6

b) ( 17/16 + 15/16) + ( 12/13 + 14/13) = 32/16 + 26/13 = 2 + 2 = 4

c) ( 5/8 + 3/8 + 1/8) + ( 7/18 + 11/18) = 9/8 + 18/18 = 9/8 + ⁸) 1 = 9/8 + 8/8 = 17/8

d) ( 8/14 + 5/14 + 1/14) + ( 1/3 + 2/3) = 14/14 + 3/3 = 1 + 1 = 2

10. a) ²) 2/5 + 3/10 = 4/10 + 3/10 = 7/10

b) 2/9 + ³) 2/3 = 2/9 + 6/9 = 8/9

c) ²) 3/4 + 5/8 = 6/8 + 5/8 = 11/8

d) 7/8 + ⁴) 1/2 = 7/8 + 4/8 = 11/8

e) ²) 1/2 + 1/4 = 2/4 + 1/4 = 3/4

f) 3/10 + ²) 2/5 = 3/10 + 4/10 = 7/10

g) 1/6 + ²) 2/3 = 1/6 + 4/6 = 5/6

h) ⁴) 3/5 + 1/20 = 12/20 + 1/20 = 13/20