SOLUTION: Jessica ate 5/12 of her orange before lunch and 5/12 of her orange after lunch. How much of her orange did she eat?

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Jessica ate 5/12 of her orange before lunch and 5/12 of her orange after lunch. How much of her orange did she eat?      Log On


   



Question 408723: Jessica ate 5/12 of her orange before lunch and 5/12 of her orange after lunch. How much of her orange did she eat?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
After lunch, she has eaten %287%2F12%29%2A%285%2F12%29+=+35%2F144.
Hence all in all she has eaten 5%2F12+%2B+35%2F144+=+95%2F144 of her orange.
Well, think about it:
Before lunch she ate 5/12 of the orange, which leaves 7/12 of the orange BEFORE lunch.
AFTER lunch, she ate 5/12 of the remaining 7/12, and that is %285%2F12%29%2A%287%2F12%29+=+35%2F144. That is the portion eaten AFTER lunch. So the portion eaten BEFORE lunch, PLUS the portion eaten AFTER lunch must be 5%2F12+%2B+35%2F144+=+95%2F144 of the orange.