Math
posted by Zhanise .
The bakery has a full tray of brownies. One customer comes in and buys 1/4 of the tray. The next customer buys 1/5 of what remained in the tray. How much did they buy and how much remains in the tray?

1/4 + 1/5
Find the common denominators, change to equivalent fractions, and add these two numbers.
Then subtract from 20/20.
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