viet phan so 1/2 thanh tong cua hai phan so toi gian khac nhau (tim hai cach viet khac nhau
Tich cua hai phan so toi gian co mau so khac 1 la 15/14. Tong 2 phan so do?
bieu dien phan so 4/5 thanh tong cua 2 phan so toi gian
Viet phan so 5/6 thanh tong cua hai phan so toi giang
Viet moi phan so sau thanh tong cac phan so co tu so bang 1 va mau so khac nhau :5/6 ;7/12 ;8/15 ;17/24 giup toi giai toan that nhanh
Tim 3 phan so khac nhau ,biet tong cua phan so thu 1 va phan so thu 2 la 7/8 ,tong cua phan so thu 2 va phan so thu 3 la 8/7 ,tong cua phan so thu 1 va phan so thu 3 la 8/9.
1) Mot hinh chu nhat co chu vi la 320 cm . Biet neu viet them chu so 1 vao ben trai so do chieu rong thi duoc so do chieu dai . Tim dien tich cua hinh chu nhat ?
2) Viet cac phan so sau day thanh tong 3 phan so sao cho moi phan so co tu so la 1 , mau so khac nhau
a) 11/26 ; b) 7/8
viet moi phan so sau thanh tong hai phan so toi gian co cung mau so :a 8phan15 b 11phan16
Tich cua hai phan so toi gian co tu so khac 1 bang \(\frac{6}{35}\). Tim tong cua hai phan so do