Question

№194,195,196. сделайте пожалуйста

Answer 1

194
1) $8:3= frac{8}{3} =2frac{2}{3}$
2) $57:9= frac{57}{9} = frac{19}{3} =6 frac{1}{3}$
3) $98:15= frac{98}{15} =6 frac{8}{15}$
195
1) $2 frac{1}{3} = frac{2*3+1}{3} = frac{6+1}{3} = frac{7}{3}$
2) $4 frac{3}{5} = frac{4*5+3}{5} = frac{20+3}{5} = frac{23}{5}$
3) $3 frac{9}{10} = frac{3*10+9}{10} = frac{30+9}{10} = frac{39}{10}$
196
1) $7+ frac{8}{19}= frac{133+8}{19} = frac{141}{19} =7 frac{8}{19}$
2) $frac{8}{68} +9= frac{2}{17} +9= frac{2+153}{17} = frac{155}{17} =9 frac{2}{17}$
3) $3 frac{5}{16} +4 frac{7}{16} =(3+4)+( frac{5}{16}+ frac{7}{16} )=7+ frac{5+7}{16}=7+ frac{12}{16}=7+ frac{3}{4}=7 frac{3}{4}$
4) $12 frac{8}{13}-8 frac{4}{13}= frac{164}{13}- frac{108}{13}= frac{164-108}{13}= frac{56}{13}=4 frac{4}{13}$
5) $5 frac{17}{21}-3frac{8}{21}+4frac{7}{21}=frac{122}{21}-frac{71}{21}+frac{91}{21}= frac{122-71+91}{21}=frac{142}{21}=6frac{16}{21}$
6) $14frac{8}{10}+5frac{1}{10}-6frac{7}{10}=frac{148}{10}+frac{51}{10}-frac{67}{10}= frac{148+51-67}{10}=frac{132}{10}=13.2$

Answer 2

что?