Question

Решите пример
12 7/5 - 9 3/4+ 5 11/12 =

Answer 1

$12 frac{7}{5} -9 frac{3}{4} +5 frac{11}{12} =12 frac{84}{60} -9 frac{45}{60} +5 frac{55}{60} =$
$=12 frac{84}{60} -9 frac{45}{60} +5 frac{55}{60} =12-9+5 +frac{84}{60} - frac{45}{60} + frac{55}{60} =8+ frac{94}{60}=8+ 1 frac{34}{60} =$
$=9 frac{34}{60} =9 frac{17}{30}$