Question

7,6÷(-1 4/15)-(-9,75)÷1 1/12=

Answer 1

7,6: (-1 4/15)- (-9,75): 1 1/12=

76/10: ( -15•1+4)/15 + 975/100 :
(1•12+1)/12=

Сокращаем 76/10 на 2; 975/100 на 25

38/5: (-19/15) - (-39/4): 13/12=

38/5• (-15/19) + 39/4• 12/13=
Сокращаем 38 и 19 на 19; 5 и 15 на 15;
4 и 12 на 4; 39 и 13 на 13;

2/1• (-3/1)+ 3/1• 3/1= 2•(-3)+3•3=
(-6)+9= 9-6=3.

Answer 2

Спасибо