A)2/7:4/5=2/7*5/4=10/28=5/14
b)3/8:9/4=3/8*4/9=12/72=1/6
c)8/21:4/7=8/21*7/4=56/84=2/3
D)5/8:15/8=5/8*8/15=40/120=1/3
k nha
A)2/7:4/5=2/7*5/4=10/28=5/14
b)3/8:9/4=3/8*4/9=12/72=1/6
c)8/21:4/7=8/21*7/4=56/84=2/3
D)5/8:15/8=5/8*8/15=40/120=1/3
k nha
Tính rồi rút gọn:
A).2/7:4/5 b).3/8:9/4 c).8/21:4/7 d).5/8:15/8
Ai lam day du buoc mik tick 2.huju giup ik
Rút gọn rồi tính:
A).3/5:3/4 b).2/5;3/10 c).9/8:3/4
D).1/4:1/2 e).1/8:1/6 g).1/5:1/10
Ai lam day du phep tinh cach giai mik tick.noi luon ra dap an mik ko tick
Giup di tixk 2 caik
Tính roi rut gon:
A).3/5;3/4 2/5;3/10 9/8;3/4
B).1/4;1/2 1/8;1/6 1/5;1/10
Ai lm day du phep tinh mik tick.noi luon ra ket qua mik ko tick
Tính bằng 2 cách:
A).(6/11+5/11)x3/7
B).3/5+7/9-3/5x2/9
C).(6/7+4/7):2/5
D).8/15:2/11+7/15:2/11
Lam day du 2 cach moi cau tick 3!!day du nhe.le len
TÍNH RỒI RÚT GỌN:
A).1/5:2/15 b).3/7:9/14
C).7/12:21/24 d).9/13:27/26
Ai lam day du phep tinh dap so mik tick 2 luon nha
Jupp
B 3/7+ 4/8 = ?
May ong ba tinh cho con bai nay bang 2 cach day gu ko thieu cao nao con tick 3 hieu chua
A).3/5x7/9-3/5x2/9
B).(6/7-4/7):2/5
C).8/15:2/11+7/15:2/11
Mog may nguoi thieu nag dug vao.lam day du 2 cach 3 cau ticl 3.le dum
Tính bằng hai cách:
A).(1/3+1/5)x1/2
B).(1/3-1/5)x1/2
Ai lam day du phep tinh 2 cach phN a va b mkk tink 2 cai lun
7/15 + 4/5 b 2/3- 3/8 c 4/7 x 21/16 chia 5/8 13x42x11/33x26x35 tinh bang cach nhanh nhat
s0s sos
giup minh voi