- 
    I need to know question no.3 part 1 with explanation I need to know question no.3 part 1 with explanation
 
                 I need to know question no.3 part 1 with explanation
    I need to know question no.3 part 1 with explanation 
   I need to know question no.3 part 1 with explanation
    I need to know question no.3 part 1 with explanation 
   
                you have to divide 2.1 by 1.2
2.1/1.2
multiply both the numerator and the denominator by 10 to remove the decimal
2.1*10/1.2*10
21/12 cut this by 3 to get 7/4 that is 7m to 4m