Question

Решите примеры пожалуйста:

Answer 1

1)
$2: frac{3}{5}+ frac{3}{5}:2+1 frac{1}{2} :6+6:1 frac{1}{2} =2* frac{5}{3}+ frac{3}{5}* frac{1}{2} + frac{3}{2} * frac{1}{6} +6: frac{3}{2}=$$=frac{10}{3}+ frac{3}{10}+ frac{1}{4} +6* frac{2}{3}= 3 frac{1}{3} + frac{3}{10}+ frac{1}{4} +4=7 frac{1}{3} + frac{12}{40}+ frac{10}{40} =$$=7 frac{1}{3} + frac{22}{40} =7 frac{1}{3} + frac{11}{20} =7 frac{20}{60} + frac{33}{60}=7 frac{53}{60}$

2)
$6 frac{1}{4} *8-3 frac{2}{3} *5 frac{1}{2} +2 frac{2}{5}*4 frac{7}{12}= frac{25}{4} *8- frac{11}{3} * frac{11}{2} +frac{12}{5}* frac{55}{12}= 50- frac{121}{6}+11=$$=61-20 frac{1}{6}=40 frac{5}{6}$

3)
$2 frac{1}{2} *48-3 frac{2}{3} : frac{1}{18}+5 frac{5}{12}: frac{7}{36} = frac{5}{2} *48- frac{11}{3} : frac{1}{18}+ frac{65}{12}* frac{36}{7}=$$=120- frac{11}{3} * 18}+ frac{65}{1}* frac{3}{7}=120-66+ frac{195}{7}=54+27 frac{6}{7} =81 frac{6}{7}$

4)
$13 frac{1}{2} :1 frac{1}{3} +16 frac{1}{2} *1 frac{5}{11} +19 frac{1}{4} : frac{4}{25} = frac{27}{2} :frac{4}{3} + frac{33}{2} *frac{16}{11} + frac{77}{4} : frac{4}{25} =$$=frac{27}{2}*frac{3}{4} + frac{33}{2} *frac{16}{11} + frac{77}{4} * frac{25}{4} = frac{81}{8} +24+ frac{1925}{16} =10 frac{1}{8} +24+120 frac{5}{16}=$$=10 frac{2}{16} +24+120 frac{5}{16}=154 frac{7}{16}$