Question

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

Answer 1

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

Answer 2

=3 4/1+5 11/12=8 15/13