(12 1/3-7 3/4)*6/11Помогите пожалуйста!

Question

(12 1/3-7 3/4)*6/11
Помогите пожалуйста!

Answer 1

(12 1/3-7 3/4)*6/11={(3·12+1)/3-(7·4+3)/4} *6/11=(37/3-31/4)*6/11=
=(37·4/12-31·3/12)*6/11={(168-93)/12 }  · 6/11=(55/12)· 6/11=5/2=2,5

Answer 2

(12.1/3 - 7.3/4)* 6/11 = 2,51) 37/3 - 31/4 = (37*4 - 31*3) / 12 =(148 - 93)/12 = 55/12 =4.7/122) 55/12 * 6/11 =5/2 = 2,5