Question

Tìm số tự nhiên a bé nhất biết a chia 120 dư 58 và a chia 135 dư 88

Answer 1

thi bủi sáng òi bi giờ bk cũng hk có đc zì. nhưng cảm ơn bạn nha

Answer 2

nói nhăng cũng đc tk vc

Answer 3

a=898

bài này mk làm rồi, đúng 100% luôn !

Answer 4

a = 898 nha bạn (^-^)

Answer 5

898 nha

Answer 6

a=898 nhé bạn 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Answer 7

a chia 120 du 58 => a-58 chia het cho 120 => a-58+120.2 chia het cho 120 => a+182 chia het cho 120              (1)

a chia 135 du 88 => a-88 chia het cho 135 => a-88+135.2 chia het cho 120 => a+182 chia het cho 135              (2)

Tu (1) va (2) => a+182 chia het cho 120 va 135

=> a+182 thuoc BC(120;135)

Vi a nho nhat nen a+182 cung phai nho nhat

=> a+182 thuoc BCNN(120;135)

120=2³.3.5                                                     135=3³.5

=> BCNN(120;158)=2³.3³.5=1080

=> a+182=1080  => a=898

Vay a=898

 

Answer 8

a =898

Answer 9

câu hỏi này lớp 5 biết nè đáp án là 898