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calculati suma numerelor x si y :
x =
[tex] \frac{9}{24} + \frac{13}{24} + \frac{15}{72} [/tex]

y =
[tex] \frac{23}{40} + \frac{49}{40} + \frac{6}{80} [/tex]
dau coroana!!!!!​


Răspuns :

Răspuns:

x=9/24+13/24+15/72

x=22/24+15/72=amplificam prima fractie cu 3

x=66/72+15/72=81/72=se simplifica si numitorul si numaratorul cu 9

x=9/8

y=23/40+49/40+6/80

y=72/40+6/80 amplificam prima fractie cu 2

y=144/80+6/80

y=150/80=15/8

x+y=9/8+15/8

x+y=24/8 se simplifica fracta cu 8

x+y=3