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Digiron [165]
3 years ago
14

A recipe called for using 5 1/8 cups of cups of flour before baking and another 8 7/9 cups after baking.What is the total amount

of flour needed in the recipe?
Mathematics
2 answers:
Arturiano [62]3 years ago
6 0
It'll be 13 65/72 and you have to simplify it
Nonamiya [84]3 years ago
4 0
First convert the mixed numbers to improper fractions...

rule:  a b/c=(ac+b)/c

41/8+79/9 

Now to add/subtract fractions you need a common denominator (preferably the least common multiple)

(41/8)(9/9)+(79/9)(8/8)

369/72+632/72

(369+632)/72

1001/72  now back to a mixed number...

(936+65)/72

13 65/72  


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