Answer:
11/24
Explanation:
you have to make the denominators the same.
to do that, you must find the LCM (Least Common Multiple) of the denominators which are 6 and 8.
Multiples of 6: 6, 12, 18, 24 (6 multiplied by 4 = 24)
Multiples of 8: 8, 16, 24 (8 multiplied by 3 = 24)
the LCM of 6 and 8 is 24 - this means that the smallest number that BOTH 6 and 8 can be divided into, WITHOUT leaving a remainder is 24.
From there, you multiply the ENTIRETY of each fraction by the number the denominator multiplies by to get 24:
3/8 multiplied by 3/3 = 9/24
1/6 multiplied by 4/4 = 4/24
NB: If you wish to check if your new and your old fractions are the same, all you have to do is simplify the new fractions and see whether or not you get back the old ones.
Next, you add the new fractions:
9/24 + 4/24 = 13/24
To get the allowance that she spent on other items:
24/24 (which is equal to 1 or 1 whole) - 13/24
This then results in 11/24 which is your answer