Question

выполните действия 2 3/4-1 5/6. 4 2/5+ 3 5/6. 7 5/12- (1 5/8+2 1/24)

Answer 1

2 3/4 - 1 5/6 = 11/4*6 - 11/6*4=66-44=22
4 2/5 + 3 5/6= 22/5*6+23/6*5=132+115=247
7 5/12 - (15/8+2 1/24)=89/12*2-(15/8*3+49/24)=178-(45+49)=178-94=84