Question

Найдите значение разности( у дробей): а) 1-8/15; г)7 3/8-5; ж)10 3/23-7 19/46; б)3-2/11; д)45-44 3/8; з)16 2/5-4 3/7; в)4-3 4/9; е)6 7/15-3 1/5; и)19 5/12-8 17/18

Answer 1

А)$1- \frac{8}{15} = \frac{15}{15} - \frac{8}{15} = \frac{7}{15}$
б)$3- \frac{2}{11} = 2\frac{11}{11} - \frac{2}{11} = 2 \frac{9}{11}$
в)$4- 3\frac{4}{9} = 3\frac{9}{9} - 3\frac{4}{9} = \frac{5}{9}$
г)$7\frac{3}{8} - 5= 2\frac{3}{8}$
д)$45-44\frac{3}{8} = 44\frac{8}{8} - 44\frac{3}{8}= \frac{5}{8}$
е)$6 \frac{7}{15} - 3\frac{1}{5} = \frac{97}{15} - \frac{16}{5} = \frac{97}{15} - \frac{48}{15} = \frac{49}{15}$
ж)$10\frac{2}{23} - 7 \frac{19}{46} = \frac{232}{23} - \frac{341}{46} = \frac{464}{46} - \frac{341}{46} = \frac{123}{46} = 2\frac{31}{46}$
з)$16\frac{2}{5} - 4 \frac{3}{7} = \frac{82}{5} - \frac{31}{7} = \frac{574}{35} - \frac{155}{35} = \frac{419}{35} = 11\frac{34}{35}$
и)$19 \frac{5}{12} - 8\frac{17}{18} = \frac{233}{12} - \frac{161}{18} = \frac{699}{36} - \frac{322}{36} = \frac{377}{36} = 10\frac{17}{36}$