Odpowiedź:
a) [tex]3\frac{1}{3} +12\frac{7}{8} +4\frac{5}{6} =3\frac{8}{24} +12\frac{21}{24} +4\frac{20}{24} = 19\frac{49}{24} =21\frac{1}{24}[/tex]
b) [tex]5\frac{4}{5} +20\frac{3}{8} +135\frac{9}{20} +18\frac{1}{4} =5\frac{32}{40} + 20\frac{15}{40} +135\frac{18}{40} +18\frac{10}{40} =178\frac{75}{40} =179\frac{35}{40}[/tex]
c) [tex]100\frac{3}{4} +61\frac{7}{20} -73\frac{4}{15} =100\frac{45}{60} +61\frac{21}{60} -73\frac{16}{60} =161\frac{66}{60} -73\frac{16}{60} =88\frac{50}{60}[/tex]
d) [tex]54\frac{1}{7} -19\frac{5}{9} -7\frac{1}{3} =54\frac{9}{63} -19\frac{35}{63} -7\frac{21}{63} =53\frac{72}{63} -26\frac{46}{63} =27\frac{26}{63}[/tex]
e) [tex]1\frac{7}{8} +4\frac{1}{3} -3\frac{1}{6} =1\frac{21}{24} +4\frac{8}{24} -3\frac{4}{24}= 5\frac{29}{24} -3\frac{4}{24} =2\frac{25}{24} =3\frac{1}{24}[/tex]
f) [tex]19\frac{3}{5} -2\frac{1}{2} +6\frac{4}{5} =19\frac{6}{10} -2\frac{5}{10} +6\frac{8}{10} = 17\frac{1}{10} +6\frac{8}{10} =23\frac{9}{10}[/tex]
Szczegółowe wyjaśnienie:
