Question

DAU COROANA
Amplificand doar una dintre fractii efectuati adunarile:
a) 4/15+2/3
b) 15/11+13/22
c) 23/7+1/21
d) 16/93+51/31
e) 1/4+3/16
f) 5/6+7/18
g) 15/43+15/14
h) 23/81+1/27

Answer 1

a) 4/15+2/3=4/15+amplificãm2/3cu5=14/5
b) 15/11+13/22=amplificãm15/11cu2=30/22+13/22=43/22
c) 23/7+1/21=ampl23/7cu3=69/21+1/21=70/21
d) 16/93+ampl51/31cu3=16/93+153/93=169/93
e) 1/4+3/16=ampl1/4cu 4=4/16+3/16=7/16
f) 5/6+7/18=ampl5/6cu3=15/18+7/18=22/18
g) 15/43+15/14=15/57
h) 23/81+1/27=23/81ampl1/27cu3=23/81+3/81=26/81
SPER CA TE. AM AJUTAT.
COROANA?