Answer is : 1 1/10 or 1 2/20 or 1.1
You do improper form of the mixed fraction first. Multiply 2 to 4 and add the 3 put this solution on top of the denominator. equaling 11 over 4 (11/4). Then you multiply 11/4 and 2/5. Numerators 11*2 =22. Then denominators 4*5 =20. Put the new numerator on top of the new denominator. Should look like this 22/20 . Now you divide 22 and 20. 20 goes into 22 once and we have a remaining of 2 so you either put the two over the 20 and simplify (1 1/10) or make it a decimal adding a 0 resulting in 1.1
Hope this helps you. :)