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29 votes
What is bigger 1 1/8 or 1 8/9

User Arslan Tabassum
by
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2 Answers

19 votes
19 votes

Answer: 1 8/9

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Reason:

Both mixed numbers have "1" as the whole part, so we only need to compare the fractional parts to see which mixed number is larger.

To compare fractions, it's helpful to get the denominators to the same LCD value. In this case, the LCD is 8*9 = 72.

  • 1/8 = 9/72 ... multiply top and bottom by 9
  • 8/9 = 64/72 ... multiply top and bottom by 8

We see that 8/9 is larger since 64 > 9 when comparing the numerators of those second fractions.

In other words,

64 > 9

64/72 > 9/72

8/9 > 1/8

Therefore the mixed number 1 8/9 is bigger.

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Another approach:

Use a calculator to find the decimal value of each fractional part

  • 1/8 = 0.125
  • 8/9 = 0.889 approximately

We see that 8/9 is bigger which means 1 8/9 is bigger.

User OtterFamily
by
2.8k points
21 votes
21 votes

To compare the fraction, always make the denominator of every fraction equal to each other.

Multiply the numerator and denominator of fraction 11/8 by 9.

Multiply the numerator and denomiantor of fraction

User Jodell
by
2.8k points