Question

so sanh phan so

555/777 va 5005/7007

viet cach lam cho minh

Answer 1

Ta có : \(\frac{555}{777}=\frac{5\times111}{7\times111}=\frac{5}{7}\)

\(\frac{5005}{7007}=\frac{5\times1001}{7\times1001}=\frac{5}{7}\)

Vì \(\frac{5}{7}=\frac{5}{7}\)nên \(\frac{555}{777}=\frac{5005}{7007}\)

Answer 2

555/777=555:111/777:111=5/7(1)

5005/7007=5005:1001/7007:1001=5/7(2)

từ 1 và 2=>555/777=5005/7007