a) [tex]\frac{1}{4}+\frac{4}{5}+\frac{5}{12}+\frac{3}{20} =\frac{15}{60}+\frac{48}{60}+\frac{25}{60}+\frac{9}{60} =\frac{15+48+25+9}{60} =\frac{97}{60}[/tex]
b) [tex]\frac{9}{8}+\frac{4}{9}+\frac{1}{36}+\frac{7}{24} =\frac{81}{72}+\frac{32}{72}+\frac{2}{72}+\frac{21}{72} =\frac{81+32+2+21}{72} =\frac{136}{72} =\frac{17}{9}[/tex]
c) [tex]\frac{5}{8}+\frac{3}{10}+\frac{4}{5}+\frac{1}{16} =\frac{50}{80}+\frac{24}{80}+\frac{64}{80}+\frac{5}{80} =\frac{50+24+64+5}{80} =\frac{143}{80}[/tex]
d) [tex]\frac{5}{48}+\frac{7}{16}+\frac{3}{8}+\frac{1}{32} =\frac{10}{96}+\frac{42}{96}+\frac{36}{96}+\frac{3}{96} =\frac{10+42+36+3}{96} =\frac{91}{96}[/tex]
e) [tex]\frac{10}{9}+\frac{1}{27}+\frac{5}{18}+\frac{7}{36} =\frac{120}{108}+\frac{4}{108}+\frac{30}{108}+\frac{21}{108} =\frac{120+4+30+21}{108} =\frac{175}{108}[/tex]
f) [tex]\frac{8}{75}+\frac{4}{15}+\frac{3}{10}+\frac{2}{25} =\frac{16}{150}+\frac{40}{150}+\frac{45}{150}+\frac{12}{150} =\frac{16+40+45+12}{150} =\frac{113}{150}[/tex]
Sper că te-am ajutat!
Succes!
