1/4=25/100 ; 4/25=16/100; 3/5=60/100; 5/8=625/1000

Bạn thử vô cái này xem sao:

https://search.yahoo.com/yhs/search;_ylt=AwrTcdwywnxX0LoAqhYnnIlQ;_ylc=X1MDMTM1MTE5NTY4NwRfcgMyBGZyA2NocmYteWZmNDIEZ3ByaWQDOVdjYjFTdXZTaktoSG1GSzN1TXEuQQRuX3JzbHQDMARuX3N1Z2cDNARvcmlnaW4Dc2VhcmNoLnlhaG9vLmNvbQRwb3MDMARwcXN0cgMEcHFzdHJsAwRxc3RybAM0MwRxdWVyeQMlMjBXT1JLU0hFRVQlMjAxNVNVQkpFQ1QlMjAlM0ElMjBHb2luZyUyMHRvBHRfc3RtcAMxNDY3NzkzOTky?p=+WORKSHEET+15SUBJECT+%3A+Going+to&fr2=sb-top-search&hspart=mozilla&hsimp=yhs-002&type=yff42

Khó quá bạn ơi

tổng chiều dài và chiều rộng là: 54 * 2 = 108(m)

chiều dài là: 108 : ( 2+7) * 7 = 84 ( m )

S mảnh vườn là: (108 - 84) * 84 = 2016 (m²)

Vô đường link này nè bạn

http://olm.vn/hoi-dap/question/144072.html

Hello everybody, my name..................................., today I going to talk about me. I am ....................... years old, a student of Thieu Nguyen secondary school and in grade 7.In school, there has a lot of trees and flower. Moreover, there are very good teachers. Listening to music and playing with my friends is my hobby. My favourite subjects are Maths, English, Chemistry, Geography, Biology, Physical.My family has four people: my parents, my sister and me. My father is 43 years old and he is a director engineer. My mother is 35 years olds and she is a housewife. She cooks very well so I like to eat whatever she cooks. My sister is ...................years old, a student of ............................................ school.She studies very good.In my free time, I usually play chess, play batminton ,...............with my sister. Everyday I always help my mother cook and clean the house. I love myself and love my family so much.

Thanks for listening

Bạn ko cho biết chị bạn bao nhiu tuổi nên mk ko biết có gì mình để chỗ trống bạn tự điền nha

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