Б)8 7/9 + ( 7 5/9 – 4 4/9 ) ; в )11 2/19 – ( 3 17/19 +6 14/19 ) помогите пожалуйста !
Б) 8 7/9+(7 5/9-4 4/9)=11 8/9 1) 7 5/9-4 4/9=3 1/9 2) 8 7/9+3 1/9=11 8/9 в) 11 2/19-(3 17/19+6 14/19)= 1) 3 17/19+6 14/19=9 31/19=10 12/19 2) 11 2/19-10 12/19=10 21/19-10 12/19=9/19
Б) 8 7/9 + ( 7 5/9 – 4 4/9 )= 8 7/9 + 3 1/9 = 11 8/9 в )11 2/19 – ( 3 17/19 +6 14/19 ) = 11 2/19 - 9 31/19 = 11 2/19 - 10 12/19 = 10 21/19 - 10 12/19 = 9/19