Question

как решить пример 1 1/4-1/3=??????

Answer 1

$1\frac14-1\frac13=\frac{1\cdot4+1}4-\frac{1\cdot3+1}3=\frac54-\frac43=\frac{15}{12}-\frac{16}{12}=-\frac1{12}$