4 7/8-4 4/6

Question

adding & subtracting fractions

Answer 1

4 7/8 = 39/8

 

4 4/6 = 28/6

 

You need a common denominator that works for both 6 and 8.  The smallest is 24

 

39/8 = 117/24

28/6 = 112/24

 

117-112 = 5

 

Therefore the answer is 5/24

Answer 2

 4 7/8 - 4 4/6 =

 

4- 4 + 7/8 - 4/6=

 

   21/ 24 - 16/24 = 5/24

 

  Always separate the integers from the fractions, add integers and fractions separately.

 

  Texts mostly suggest to convert mixed numbers to improper fractions, which is unnecessary and causes lot of irrelevant work.

Answer 3

4 7/8 - 4 4/6

= 4 + 7/8 - (4 + (2*2)/(2*3))

= 4 + 7/8 - 4 - 2/3

= 7/8 * 3/3 - 2/3 * 8/8

= (21 - 16)/24

= 5/24