recipe and fractions

by Dopee.E<3
(here...)

you are at a grocery store to buy ingredients for your cupcakes. the recipe requires 4 2/8 a cup of rising flour to make 28 cupcakes. your want to make 112 cupcakes. How much rising flour do you need?

Solution

How much more is 112 compared to 28?

To find out divide 112 by 28.

112/28 = 4

So you need 4 times 4 2/8

4 2/8 = 4 1/4

4 1/4 means 4 cups and 1/4 of a cup.

4 times 4 = 16

4 times 1/4 = 1

16 + 1 = 17

Therefore, for 112 cupcakes, you need 17 cups of rising flour

WORD PLOBLEM

by MARIA
(NJ)

Mr.yanaga's car has a gas tank that hold 16 gallons. he used 3/4 of a thank of gas. how many gallons of gas did he use?

We can break 16 down into 4 equal pieces

16 = 4 + 4 + 4 + 4

If you take 3 out of 4, the answer is 4 + 4 + 4 = 12

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