1/5x3/4-1/2x3/5
=3/20-3/10
=-3/20
Ai k mik mik k lại
1/5x3/4-1/2x3/5
=3/20-3/10
=-3/20
Ai k mik mik k lại
2/5x3/4+1/4x2/5
Giúp mình với mình tick hết
7/6+5/12-1/18-1=? 13/6+5/18+3-7/12=?
3+11/4-1/12-3/16=? 2/5x7/4-2/5x3/4=?
2/5x3/8+3/4 2/5+3/8x3/4
3/4:1/5-1/3 3/4-1/5:1/3
giúp mk với nha
tính giá trị biểu thức
1/2x3/4:6/5 2/3+1/6:7/12 8x3/5:12/5 4/9+3/4-1/3
tìm y : ( 1/2x3=1/3x4+ ........1/9x10):y=4/5
(5/7-1/19)x7 1/2x3/4+1/2x1/4 11/3x26/7-8/3x26/7
tính giá trị biểu thức
1/2x3/4:6/5 2/3+1/6:7/12 8x3/5:12/5 4/9+3/4-1/3
tính nhanh
4/5-2/3/+1/5-1/3
2/5 x 7/4 - 2/5x3/7
13/4 x 2/3 x 4/13 x 3/12
75/100 + 18/21 + 19/32 +1/4 + 3/21 + 13/32
2/5 + 6/9+3/4+3/5+1/3+1/4
a,2/3-1/5x2/3+1/6=?
tinh hon so nha cac banb,42/5
b,42/5x3/7+42/3x4/7+4=?