what do i need if the mat question is 3/4+2/5+#/#=2 (#=empty)
I think you are asking 3/4 +2/5 + x = 2 ?
Find common denominator (20) 3/4 = 15/20 and 2/5 = 8/20 and 2 = 40/20
15/20 +8/20 + x = 40/20
23/20 + x = 40/20 Subtract 23/20 from both sides of the equation
x= 17/20