Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

222-9+11+12:2*14+14 = ? ( )

Toán Lớp 7: 2 1/3 chia 1/3 =7/9 chia x b, x chia 1/3=12/99 chia 15 /90 c, 4/9 chia x = 3 1/3 chia 2,25 d, 3/4 chia 99/40=x chia 65

Tháng Bảy 14, 2022 Toán học 2 Comments 0 views

Toán Lớp 7: 2 1/3 chia 1/3 =7/9 chia x
b, x chia 1/3=12/99 chia 15 /90
c, 4/9 chia x = 3 1/3 chia 2,25
d, 3/4 chia 99/40=x chia 65

Comments ( 2 )

  1. giangnguyen33
    giangnguyen33
    14 Tháng Bảy, 2022 at 9:20 sáng
    Reply

    Ok nha
    toan-lop-7-2-1-3-chia-1-3-7-9-chia-b-chia-1-3-12-99-chia-15-90-c-4-9-chia-3-1-3-chia-2-25-d-3-4

  2. hienchaudiem
    hienchaudiem
    14 Tháng Bảy, 2022 at 9:20 sáng
    Reply
    a) 1/3 : 1/3 = 7/9 : x
    1 = 7/9 : x
    1 × 7/9 = x
    7/9 = x
    => x = 7/9
    b) x : 1/3 = 12/99 : 15/90
    x : 1/3 = 8/11
    x = 8/11 × 1/3
    x = 8/33
    => x = 8/33
    c) 4/9 : x = 31/3 : 2,25
    4/9 : x = 10/3 : 2,25
    4/9 : x = 40/27
    x = 4/9 : 40/27
    x = 3/10
    => x = 3/10
    d) 3/4 : 99/40 = x : 65
    10/33 = x : 65
    65 : 10/33 = x
    429/2 = x
    => x = 429/2
    @ Rin

Leave a reply

222-9+11+12:2*14+14 = ? ( )

Hải Phượng

About Hải Phượng