Question

Chứng tỏ rằng: \(\frac{373}{420}=\frac{373373373}{420420420}\)

Answer 1

Vì 373373373373373373 phần 420420420420420420= phân số 373 phần 420

Answer 2

vì

373373373/420420420=373373373:1001001/420420420:1001001=373/420

Answer 3

ta có thể thử : 373*420420420=420*373373373

373373373=373000000+373000+373

=373*(1000000+1000+1)=373*1001001

420420420=420000000+4200000+420

=420*(1000000+1000+1)=420*1001001

ta có: 373373373/420420420=373373373:1001001/420420420:1001001=373/420