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Add: \( 7 \frac{1}{4}+4 \frac{3}{7} \)

Ask by Mcfarlane Allan. in the United States
Feb 25,2025

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Answer

\( 7 \frac{1}{4} + 4 \frac{3}{7} = 11 \frac{19}{28} \)

Solution

To add 7 1/4 and 4 3/7, first convert each mixed number to an improper fraction: • 7 1/4 = (7 × 4 + 1)/4 = 29/4 • 4 3/7 = (4 × 7 + 3)/7 = 31/7 Next, find a common denominator. The least common denominator of 4 and 7 is 28: • 29/4 = (29 × 7)/(4 × 7) = 203/28 • 31/7 = (31 × 4)/(7 × 4) = 124/28 Now add the fractions: 203/28 + 124/28 = (203 + 124)/28 = 327/28 Finally, convert the improper fraction back to a mixed number. Divide 327 by 28: • 28 goes into 327 a total of 11 times (since 28 × 11 = 308) with a remainder of 327 − 308 = 19. Thus, 327/28 = 11 19/28 The final answer is 11 19/28.

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To add \( 7 \frac{1}{4} + 4 \frac{3}{7} \), start by converting the mixed numbers into improper fractions. For \( 7 \frac{1}{4} \): \[ 7 \times 4 + 1 = 28 + 1 = 29 \] So, \( 7 \frac{1}{4} = \frac{29}{4} \). For \( 4 \frac{3}{7} \): \[ 4 \times 7 + 3 = 28 + 3 = 31 \] So, \( 4 \frac{3}{7} = \frac{31}{7} \). Next, find a common denominator for \( \frac{29}{4} \) and \( \frac{31}{7} \). The least common multiple of 4 and 7 is 28. Convert both fractions: \[ \frac{29}{4} = \frac{29 \times 7}{4 \times 7} = \frac{203}{28} \] \[ \frac{31}{7} = \frac{31 \times 4}{7 \times 4} = \frac{124}{28} \] Now, add the two fractions: \[ \frac{203}{28} + \frac{124}{28} = \frac{203 + 124}{28} = \frac{327}{28} \] Convert \( \frac{327}{28} \) back to a mixed number: \( 327 \div 28 \) gives 11 remainder 19, so: \[ \frac{327}{28} = 11 \frac{19}{28} \] Thus, the final answer is: \( 7 \frac{1}{4} + 4 \frac{3}{7} = 11 \frac{19}{28} \)

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