Write a problem you can solve using the fractions 5/8 and 1 2/7. Explain how you can solve by simplifying a complex fraction. Show your work. PLS HELP!! I WILL GIVE

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

10% of 1,900,000. show me how you got the answer