Question

Выполни действия а) 5/9+11/27 б) 2/3-3/5 в)7-3/3/4 г) 4/5/6+8/4/15 д) 1/7/12-5/18 е) 2/1/8-1/9/20

Answer 1

Решение смотри в приложении

Answer 2

$1) \frac{5}{9} + \frac{11}{27} = \frac{15}{27} + \frac{11}{27} = \frac{26}{27} \\ \\ 2) \frac{2}{3} - \frac{3}{5} = \frac{10}{15} - \frac{9}{15} = \frac{1}{15} \\ \\ 3) 7-3 \frac{3}{4} =7-3.75=3.25 \\ \\ 4) 4 \frac{5}{6} +8 \frac{4}{15} =4 \frac{25}{30} +8 \frac{8}{30} =12 \frac{33}{30} =13 \frac{3}{30} =13 \frac{1}{10} =13.1 \\ \\ 5) 1 \frac{7}{12} - \frac{5}{18} =1 \frac{21}{36} - \frac{10}{36} =1 \frac{11}{36} \\ \\$

$6) 2 \frac{1}{8} -1 \frac{9}{20} =2 \frac{5}{40} -1 \frac{18}{40} =1 \frac{45}{40} -1 \frac{18}{40} = \frac{27}{40}$