Write the appropriate sign > or < in the following: (1) 2/9 __ 2/7 (2) 3/11 __ 3/13 (3) 8/15 __ 8/17 (4) 7/8 __ 7/15 (5) 6/17 __ 6/11 (6) 9/10 __ 9/11

Question image

Understand the Problem

The question is asking us to compare fractions and write the appropriate sign 'greater than' or 'less than' between them. This involves understanding how to compare the sizes of the fractions given.

Answer

1. \( < \) 2. \( > \) 3. \( > \) 4. \( > \) 5. \( < \) 6. \( > \)
Answer for screen readers
  1. ( \frac{2}{9} < \frac{2}{7} )
  2. ( \frac{3}{11} > \frac{3}{13} )
  3. ( \frac{8}{15} > \frac{8}{17} )
  4. ( \frac{7}{8} > \frac{7}{15} )
  5. ( \frac{6}{17} < \frac{6}{11} )
  6. ( \frac{9}{10} > \frac{9}{11} )

Steps to Solve

  1. Convert to Common Denominator

To compare the fractions, find a common denominator.

For the first pair ( \frac{2}{9} ) and ( \frac{2}{7} ), the common denominator is 63.

Convert both fractions: [ \frac{2}{9} = \frac{2 \times 7}{9 \times 7} = \frac{14}{63} ] [ \frac{2}{7} = \frac{2 \times 9}{7 \times 9} = \frac{18}{63} ]

  1. Compare the Numerators

Now compare the numerators of ( \frac{14}{63} ) and ( \frac{18}{63} ).

Since ( 14 < 18 ), we write: [ \frac{2}{9} < \frac{2}{7} ]

  1. Repeat for Remaining Pairs

Repeat the process for each set of fractions.

For ( \frac{3}{11} ) and ( \frac{3}{13} ):

  • Common denominator is 143: [ \frac{3}{11} = \frac{3 \times 13}{11 \times 13} = \frac{39}{143} ] [ \frac{3}{13} = \frac{3 \times 11}{13 \times 11} = \frac{33}{143} ] Since ( 39 > 33 ), we write: [ \frac{3}{11} > \frac{3}{13} ]

For ( \frac{8}{15} ) and ( \frac{8}{17} ):

  • Common denominator is 255: [ \frac{8}{15} = \frac{8 \times 17}{15 \times 17} = \frac{136}{255} ] [ \frac{8}{17} = \frac{8 \times 15}{17 \times 15} = \frac{120}{255} ] Since ( 136 > 120 ), we write: [ \frac{8}{15} > \frac{8}{17} ]

For ( \frac{7}{8} ) and ( \frac{7}{15} ):

  • Common denominator is 120: [ \frac{7}{8} = \frac{7 \times 15}{8 \times 15} = \frac{105}{120} ] [ \frac{7}{15} = \frac{7 \times 8}{15 \times 8} = \frac{56}{120} ] Since ( 105 > 56 ), we write: [ \frac{7}{8} > \frac{7}{15} ]

For ( \frac{6}{17} ) and ( \frac{6}{11} ):

  • Common denominator is 187: [ \frac{6}{17} = \frac{6 \times 11}{17 \times 11} = \frac{66}{187} ] [ \frac{6}{11} = \frac{6 \times 17}{11 \times 17} = \frac{102}{187} ] Since ( 66 < 102 ), we write: [ \frac{6}{17} < \frac{6}{11} ]

For ( \frac{9}{10} ) and ( \frac{9}{11} ):

  • Common denominator is 110: [ \frac{9}{10} = \frac{9 \times 11}{10 \times 11} = \frac{99}{110} ] [ \frac{9}{11} = \frac{9 \times 10}{11 \times 10} = \frac{90}{110} ] Since ( 99 > 90 ), we write: [ \frac{9}{10} > \frac{9}{11} ]
  1. ( \frac{2}{9} < \frac{2}{7} )
  2. ( \frac{3}{11} > \frac{3}{13} )
  3. ( \frac{8}{15} > \frac{8}{17} )
  4. ( \frac{7}{8} > \frac{7}{15} )
  5. ( \frac{6}{17} < \frac{6}{11} )
  6. ( \frac{9}{10} > \frac{9}{11} )

More Information

Understanding how to find a common denominator is essential for comparing fractions effectively. This process applies to both proper and improper fractions.

Tips

  • Failing to find the correct common denominator can lead to incorrect comparisons. Always double-check the calculations.
  • Confusing the numerators after conversion; ensure comparison is made on adjusted values only.

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