Divisjon med brøk 1: Spor III – fasit

SPOR III

Oppgave 1
a) 2\frac{2}{3} :3\frac{1}{4}=\frac{32}{39} b) 5\frac{1}{4} :\frac{5}{6}=\frac{126}{20}=6\frac{3}{10} c) 2\frac{4}{8} :2\frac{3}{6}=\frac{120}{120}=1
d) 5\frac{1}{3} :1\frac{3}{5}=\frac{80}{24}=\frac{10}{3}=3\frac{1}{3} e) 4\frac{3}{5} :4\frac{9}{15}=1 f) 2\frac{3}{4} :4\frac{2}{3}=\frac{33}{56}
g) 2\frac{1}{5} :1\frac{3}{8}=\frac{88}{55}=\frac{8}{5}=1\frac{3}{5} h) 3\frac{1}{6} :2\frac{2}{9}=\frac{171}{120}=\frac{57}{40}=1\frac{17}{40} i) 5\frac{3}{7} :2\frac{8}{14}=\frac{532}{252}=\frac{133}{63}=2\frac{7}{63}=2\frac{1}{9}
Oppgave 2

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