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a fost răspuns

Sa se efectueze :
a) 5/4-7/12=
b) 2/9-5/6=
c) 13/8-7/12=
d) 3/10+8/15=
e) 15/4-9/10=
f) 3/5+1/3=
g )7/3-1/4=

Răspuns :

Ivoryelissa
A) 5/4 - 7/12 = 15/12 - 7/12 = 8/12 = 2/3
B) 2/9 - 5/6 = 4/18 + 15/18 = 19/18
C) 13/8 - 7/12 = 39/24 - 14/24 = 25/24
D) 3/10 + 8/15 = 9/30 + 16/30 = 25/30 = 5/6
E) 15/4 - 9/10 = 75/20 - 18/20 = 57/20
F) 3/5 + 1/3 = 9/15 + 5/15 = 14/15
G) 7/3 - 1/4 = 28/12 - 3/12 = 25/12

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