Question

co 120 quyen vo,72 but bi,168 tap giay.nguoi ta chia vo,but bi,giay thanh cac phan thuong bang nhau,moi phan gom 3 loai.tinh xem co the chia dc nhieu nhat bao nhieu phan thuong?khi do,moi phan co bao nhieu vo,but va giay

Answer 1

minh can gap lam ai giai ho minh di

Answer 2

Goi so phan thuong duoc chia la x (phan thuong)

Ta co:

120 chia het cho x

72 chia het cho x

168 chia het cho x

suy ra: x thuoc UC (120,72,168)

120 = 2².3.5

72=2³.3²

168 =2³.3.7

UCLL(120,72,168)=2².3=12

UC(120,72,168)=U(12)={1;12;2;6;3;4}

Vay co 6 cach chi :1 phan,2 phan,3phan,4phan,6 phan ,12 phan

1phan:120:1=120

          72:1=72

          168:1=168

cu lam nhu vay voi cac nhom con lai

Answer 3

oh,the a minh dang bi cam on nhe tran thi kim ngan