The reason fractions need a common denominator before adding or subtracting is so that the numbers of pieces you are adding/subtracting are all the same size. Note that the numerator of a fraction just tells you how many pieces you have of that size.
Answer:
x=12.5
Step-by-step explanation:
x=2 1/2 times 5
x=12.5
Step-by-step explanation:
× + 6 =4
x=4-6
x=-2
Hope it helps ☺️
I cannot understand what you are saying
