Question

математика задание 493 Вычислите​

Answer 1

Ответ:

5)$20 - 3 \frac{8}{15} + 10 \frac{4}{15} = 19 \frac{15}{15} - 3 \frac{8}{15} + 10 \frac{4}{15} = 26 \frac{15 - 8 + 4}{15} = 26 \frac{11}{15}$

7)$15 \frac{7}{11} - 4 \frac{9}{16} + 3 \frac{4}{11} = 11 \frac{112 - 99}{176} + 3 \frac{4}{11} = 11 \frac{13}{176} + 3 \frac{4}{11} = 14 \frac{13 + 64}{176} = 14 \frac{77}{176} = 14 \frac{7}{16}$

9)$12 \frac{4}{13} - 2 \frac{13}{20} + 3 \frac{9}{13} = 10 \frac{80 - 169}{260} + 3 \frac{9}{13} = 9 \frac{340 - 169}{260} + 3 \frac{9}{13} = 9 \frac{171}{260} + 3 \frac{9}{13} = 12 \frac{171 + 180}{260} = 12 \frac{351}{260} = 13 \frac{91}{260}$

$1)4 \frac{2}{9} + 5 \frac{2}{3} - 1 \frac{4}{9} = 9 \frac{2 + 6}{9} - 1 \frac{4}{9} = 9 \frac{8}{9} - 1 \frac{4}{9} = 8 \frac{8 - 4}{9} = 8 \frac{4}{9}$

3)$5 \frac{3}{5} - 2 \frac{6}{11} + 3 \frac{3}{5} = 3 \frac{33 - 30}{55} + 3 \frac{3}{5} = 3 \frac{3}{55} + 3 \frac{3}{5} = 6 \frac{3 + 33}{55} = 6\frac{36}{55}$