Question

Выполните Действия:
а) 3+8 5/12 б)10 6/7-3
в)4 2/13+ 5 7/13
г) 8 7/12 - 4 2/12
д) 4 8/11+5 7/11
е) 7 5/9- 2 8/9
ж) 7- 3/8
з) 10- 3 7/15

Answer 1

Пошаговое объяснение:

$3+8\frac{5}{12} =\frac{36}{12} +\frac{101}{12} =\frac{137}{12} =11\frac{5}{12} \\$

$10\frac{6}{7} -3=\frac{76}{7} -\frac{21}{7} =\frac{55}{7} =7\frac{6}{7}$

$4\frac{2}{13} +5\frac{7}{13} =\frac{54}{13} +\frac{72}{13} =\frac{126}{13} =9\frac{9}{13}$

$8\frac{7}{12} -4\frac{2}{12} =\frac{103}{12} -\frac{50}{12} =\frac{53}{12} =4\frac{5}{12}$

$4\frac{8}{11} +5\frac{7}{11} =\frac{52}{11} +\frac{62}{11} =\frac{114}{11} =10\frac{4}{11}$

$7\frac{5}{9} -2\frac{8}{9} =\frac{68}{9} -\frac{26}{9} =\frac{42}{9} =4\frac{6}{9}$

$7-\frac{3}{8} =\frac{56}{8} -\frac{3}{8} =\frac{53}{8} =6\frac{5}{8}$

$10-3\frac{7}{15} =\frac{150}{15} -\frac{52}{15} =\frac{98}{15} =6\frac{8}{15}$