Add: 1 2/3+4/7, reduced to lowest terms =
1 2/5
1 26/21
2 5/21
2 3/21
Correct Answer : C
To add 
and 
, first convert to an improper fraction:
= 
= 
Now add and . To do so, find a common denominator, which for 3 and 7 is 21:
= 
= 
= 
= 
Add these fractions:
+ 
= 
= 
Since is an improper fraction, convert it to a mixed number:
47 ÷ 21 = 
Thus, the correct answer is: C 2 5/21
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Related Questions
Correct Answer is A
Explanation
To solve the proportion 15/3=𝑋/5, you can use cross-multiplication:
15×5=3×𝑋
Calculate the left side:
15×5=75
Now set up the equation:
75=3𝑋
Solve for X by dividing both sides by 3:
𝑋=75/3=25
Thus, the value of X is 25.
Correct Answer is D
Explanation
To multiply fractions;
1. Multiply the numerators together:
39×6=234
2. Multiply the denominators together:
54×13=702
Thus, the product of the fractions is
.
Next, simplify:
- Calculate the greatest common divisor (GCD) of 234 and 702. Both numbers are divisible by 234:
234÷234=1
702÷234=3
The simplified product of the fractions is
.
Thus, the correct answer from the provided choices is: D 1/3
Correct Answer is B
Explanation
To calculate the total number of legs in the group, we need to consider both the legs of the girls and the legs of the cats.
Each girl has 2 legs. Since there are 7 girls:
7×2=14legsfromthegirls
Each cat has 4 legs. Since each girl has 7 cats, there are a total of:
7×7=49cats.
Thus, the total number of legs for the cats is:
49×4=196legsfromthecats.
Adding the number of legs from the girls and the cats gives:
14+196=210legsintotal
The correct answer is B 210.
Correct Answer is C
Explanation
military time and standard time are the same for hours before noon.
Therefore, 11 a.m. is simply written as 1100 hours in military time.
The correct answer is: C 1100
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