Subtract 7 7/10 - 3 4/5 =

Rationale

Subtracting 7 7/10 - 3 4/5 equals 3 9/10.

To perform the subtraction of mixed numbers, we first convert them into improper fractions, then find a common denominator before subtracting. The result simplifies to 3 9/10, demonstrating the correct arithmetic process.

A (4 1/10) YOUR ANSWER

This choice is incorrect because it suggests a result that is greater than the difference of 7 7/10 and 3 4/5. When calculated, the actual difference is less than 4, indicating a miscalculation in the subtraction or simplification process.

B (11 1/2) YOUR ANSWER

This option is incorrect as it suggests a sum instead of a difference. The number 11 1/2 is larger than both 7 7/10 and 3 4/5, making it impossible for it to be the result of their subtraction. This reflects a misunderstanding of the operations involved.

C (4 3/5) YOUR ANSWER

This choice is also incorrect, as it implies a larger difference than what is calculated. The result of the subtraction is less than 4 3/5, highlighting an error in either the arithmetic or the simplification of the fractions involved in the problem.

D (3 9/10) CORRECT

This choice is correct because it accurately represents the result of the subtraction after proper calculation and simplification. The process involves converting the mixed numbers into improper fractions, finding a common denominator, and performing the subtraction correctly, leading to this final answer.

Conclusion

The subtraction of mixed numbers requires careful calculation to ensure accuracy. In this case, 7 7/10 - 3 4/5 results in 3 9/10, establishing it as the correct answer. The other options fail to accurately reflect the arithmetic performed, demonstrating the importance of proper calculation in solving such problems.

Subtract 7 7/10 - 3 4/5 =

Subtracting 7 7/10 - 3 4/5 equals 3 9/10.

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