Question

Salut!Cine stie ex.3?

Answer 1

Răspuns:

/ înseamnă linia de fracție

a) 1/2 + 3/4 = 2/4 + 3/4 = 5/4

b) 1/3 + 2/5 = 5/15 + 6/15 = 11/15

c) 2/3 + 3/4 = 8/12 + 9/12 = 17/12

d) 5/2 + 3/5 + 2/3 = 75/30 + 18/0 + 20/30 = 113/30

e) 3/2 + 1/4 = 6/4 + 1/4 = 7/4

f) 3/5 + 2/15 = 9/15 + 2/15 = 11/15

g) 1/6 + 5/18 = 3/18 + 5/18 = 8/18

h) 1/2 + 4/5 + 7/10 + 11/20 = 10/20 + 16/20 + 14/20 + 11/20 = 51/20

i) 5/8 + 7/12 = 15/24 + 14/24 = 29/24

j) 4/9 + 11/15 = 20/45 + 33/45 =53/45

k) 9/14 + 5/21 = 27/42 + 10/42 = 37/42

Sper ca te-am ajutat!