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Mel paid for 3/4 of the cost of a cake and Gretchen paid the rest if Mel paid $21 how much did Gretchen pay

Please show how u got it

2 Answers

7 votes
$21 is 3/4 of $28, because 28 divided by 4 is 7. 7 times 3 is 21. $28 minus $21 is $7. Mel paid $21, and Gretchen paid $7 for the cake. To find the answer, first divide the cost of the cake as a whole by the denominator (bottom or right-side number) of your fraction. Now, take the quotient and multiply it by your numerator (top or left-hand number of your fraction). Subtract your answer from the total cost of the cake, and you’ll see how much was paid. Hopefully this helps!
User AlexVogel
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3.2k points
7 votes
21 / 3 = 7, Gretchen paid $7
The cake cost $28 in total
User Arun Ghosh
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