Respuesta :

What is 3/5 of 7 kg ?

of = multiplication

3/5 × 7 = ?
0.6 × 7 = 
4.2

3/5 of 7 kg is 4.2 kg.
We do the following:
3/5 x 7 = 21/5 kg(in fractions), which is equal to 4.2 kg(in decimals)