Solve the following:
 
i. 1 \(\times\) \(\frac{5}{4}\)  \(=\) iii
 
ii. 4 \(\times\) \(\frac{5}{7}\)  \(=\) iii
 
iii. 7 \(\times\) \(\frac{4}{3}\)  \(=\) iii
 
iv. 10 \(\times\) \(\frac{5}{7}\)  \(=\) iii
 
[NOTE: With Simplification]