Question

Решите,если можете пожалуйста (на фото)

Answer 1

1) $6: frac{3}{5} =6 * frac{5}{3} = 10$
2) $1 frac{1}{6} * frac{6}{7}= frac{7}{6} * frac{6}{7}= 1$
3)$10-1=9$
4) $4 frac{1}{5}* frac{10}{11}= frac{21}{5} * frac{10}{11} = frac{42}{11}$$=3 frac{9}{11}$
5) $3 frac{9}{11} +5 frac{2}{11}=8 frac{11}{11} = 9$
6) $frac{3}{20}+ frac{1}{2} - frac{1}{15}= frac{9+30-4}{60}= frac{35}{60}= frac{7}{12}$
7) $frac{7}{12}* frac{12}{49}= frac{1}{7}$
8) $frac{1}{5}+ frac{1}{7}= frac{7+5}{35}= frac{12}{35}$
9) $frac{1}{7} : frac{12}{35}= frac{1}{7}* frac{35}{12} = frac{5}{12}$
10) $1 - frac{5}{12}= frac{12}{12}- frac{5}{12}= frac{7}{12}$
11) $frac{7}{12} *2 frac{1}{3} = frac{7}{12}* frac{7}{3} = frac{49}{36}= 1 frac{13}{36}$
12) $3 frac{1}{4} -1 frac{13}{36}= 3 + frac{1}{4}-1- frac{13}{36}=(3-1)+( frac{1}{4}- frac{13}{36})=2+ frac{9-13}{36}= 2- frac{4}{36} =$$2- frac{1}{9}=1 frac{8}{9}$