How do i subtract fractions??? please help!!?

Question

well we're doing year 7 fractions and i forgot how to subtract.

i can divide and multiply, but i forgot how to subtract and add!

so this is the sum...

[i cant write a fraction so here you go anyway]

26 over 3

subtract

31 over 5

hope you can help!!!!!

Answer 1

26/3 - 31/5 = (26*5)/15 - (31*3)/15 = 130/15 - 93/15 = 37/15

Answer 2

3 = 3

5 = 5

----------------------

The LCM of 3 , 5 is:

3 x 5

= 15

26/3 - 31/5

= (26 x 5)/(3 x 5) - (31 x 3)/(5 x 3)

= 130/15 - 93/15

= 37/15

Answer 3

26/3-31/5 = (26*5)/15 - (31*3)/15= 130/15- 93/15=37/15= 2 7/15

Answer 4

That would be like subtracting apples from bananas.  However 3 and 5 are both factors of 15 (3 x 5 = 15).  So change each fraction into 15Th's and they can be subtracted.  Multiply 26/3 x 5/5 = 130/15 and 31/5 x 3/3 = 93/15.  Notice that multiplying by 5/5 or 3/3 is like multiplying by 1 and does not change the value but does change the denominator to what you need.  

Answer 5

26 / 3 - 31 / 5

130 / 15 - 93 / 15

37 / 15

Answer 6

Make denominators equal by finding their LCM and subtract Numerators. Keep the same common denominator. [ Don't subtarct them too!]

The "go" id not clear. What is to be subtracted from what?

If 26/3 - 31/5 then it is 130/15 - 63/15 = 67/15.