>,<,=
a,2/3+3/4+4/5+7/9+9/11...................5
b,1/10+1/11+1/12+1/13+1/14...............1/5
c,15/5+13/11+22/21..................5
Tính:
1/3 + 1/5 - 1/4
7/8 - (1/4 + 2/5)
5/11 - (3/5 - 6/11)
Rút gọn luôn nha
Bài 1: Tính
a) 1/3 + 1/5 - 1/4 b) 7/8 - ( 1/4 + 2/5 ) c) 5/11 - ( 3/5 - 6/11 )
1 ; 5 / 11 + 19 / 25 + 6 / 11 + 11/ 16 + 6 / 25 + 5 / 16
2. Tính: A) 1/3 + 1/5 - 1/4. B) 7/8 - ( 1/4 + 2/5 ). C) 5/11 - ( 3/5 - 6/11 ). D) 5/7 - ( 19/35 - 6/15 ).
2. Tính: A) 1/3 + 1/5 - 1/4. B) 7/8 - ( 1/4 + 2/5 ). C) 5/11 - ( 3/5 - 6/11 ). D) 5/7 - ( 19/35 - 6/15 ).
câu 8 : tìm x
3/5 : x = 3
câu 9
a) 1/5 + 4/11 + 4/5 + 7/11
b) 5/6 + ( 5/9 - 1/4 )
( 5/8 + 1/4 ) x 2/3 =
5/7 x 1/3 + 4/3 =
9/11 + 1/12 : 11/24 =
Tính bằng cách thuận tiên nhất:
1/5 + 4/11 + 4/5 + 7/11 =
5/6 + 8/24 + 1/6 + 16/24 =
Tính
1/3+1/5-1/4=
5/11-(3/5-6/11)=