Question

efectuati
$\frac{1}{8} + \frac{1}{9} + \frac{1}{6}$
$\frac{7}{36}+\frac{1}{18} + \frac{5}{6}+\frac{3}{4}$
$\frac{11}{18} +\frac{4}{9} + \frac{5}{6} + \frac{1}{3}$
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Answer 1

La primul avem:
9+8+12/72=29/72

La al doilea:
7+2+30+27/36=66/36 si aici simplificam prin 6= 11/6

La al treilea:
11+8+15+6/18=40/18 si aici simplificam prin 2= 20/9