d. Grandma gave Kendra recipes for cranberry cookies and cranberry bread. One recipe calls for 32 cup cranberries, and the other recipe calls for 143 cup. How many cups of cranberries will Kendra need to make both recipes?
Q. d. Grandma gave Kendra recipes for cranberry cookies and cranberry bread. One recipe calls for 32 cup cranberries, and the other recipe calls for 143 cup. How many cups of cranberries will Kendra need to make both recipes?
Identify amounts needed: Identify the amounts needed for each recipe. The first recipe needs 32 cup and the second needs 143 cups.
Convert to improper fraction: Convert the mixed number to an improper fraction for easier addition. 1(43) is the same as (44)+(43), which equals (47) cups.
Add fractions with common denominator: Add the two fractions (32) cup + (47) cups. To add fractions, find a common denominator. The least common multiple of 3 and 4 is 12.
Convert to twelfths: Convert (32) into twelfths by multiplying the numerator and denominator by 4, getting (128). Convert (47) into twelfths by multiplying the numerator and denominator by 3, getting (1221).
Add fractions with common denominator: Add the two fractions now that they have a common denominator: (128)+(1221) equals (1229).
Convert back to mixed number: Convert the improper fraction (29)/(12) back to a mixed number. 12 goes into 29 twice with a remainder of 5, so the mixed number is 2125 cups.
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