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olya-2409 [2.1K]
3 years ago
10

. Dinah bought 3 packages of ground beef. The packages weigh 3 3/4 pounds, 1 1/8 pounds, and 2 1/2 pounds. How many pounds of gr

ound beef did Dinah buy
Mathematics
2 answers:
IgorC [24]3 years ago
8 0

Answer:

6 3/8

Step-by-step explanation:

Convert the fractions so that the denominators match.

3\frac{3}{4} =3\frac{6}{8}, then 3\frac{6}{8}=\frac{30}{8}

1\frac{1}{8}=\frac{9}{8}

2\frac{1}{2}=\frac{3}{2}, then \frac{3}{2}=\frac{12}{8}

Add up the fractions.

\frac{30}{8}+\frac{9}{8}+\frac{12}{8} =\frac{51}{8} =6\frac{3}{8}

valentina_108 [34]3 years ago
3 0

Answer:

7\frac{3}{8} pounds

Step-by-step explanation:

First, convert the fractions into improper fractions, and make them have the same denominator.

First package: 3\frac{3}{4} =\frac{15}{4}=\frac{30}{8}

Second package: 1\frac{1}{8} =\frac{9}{8}

Third package: 2\frac{1}{2}=\frac{5}{2}=\frac{20}{8}

Notice that all the fractions have the same denominator, making it easy to add up. Now we add up the fractions.

\frac{30}{8}+\frac{9}{8}+\frac{20}{8}=\frac{59}{8} =7\frac{3}{8}

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