Questions: All of the following are equal to 1 5/8 EXCEPT 1+5/8 8/8+2/8+3/8 1+3/8+1/8 8/8+4/8+1/8

All of the following are equal to 1 5/8 EXCEPT 1+5/8 8/8+2/8+3/8 1+3/8+1/8 8/8+4/8+1/8
Transcript text: All of the following are equal to $1 \frac{5}{8}$ EXCEPT $1+\frac{5}{8}$ $\frac{8}{8}+\frac{2}{8}+\frac{3}{8}$ $1+\frac{3}{8}+\frac{1}{8}$ $\frac{8}{8}+\frac{4}{8}+\frac{1}{8}$
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Solution

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Solution Steps

Step 1: Convert Mixed Number to Improper Fraction

The mixed number 1581 \frac{5}{8} can be converted to an improper fraction.

158=88+58=138 1 \frac{5}{8} = \frac{8}{8} + \frac{5}{8} = \frac{13}{8}

Step 2: Evaluate Each Option

Let's evaluate each option to see which one is not equal to 138\frac{13}{8}.

  1. 1+58=88+58=1381 + \frac{5}{8} = \frac{8}{8} + \frac{5}{8} = \frac{13}{8}
  2. 88+28+38=138\frac{8}{8} + \frac{2}{8} + \frac{3}{8} = \frac{13}{8}
  3. 1+38+18=88+38+18=1281 + \frac{3}{8} + \frac{1}{8} = \frac{8}{8} + \frac{3}{8} + \frac{1}{8} = \frac{12}{8}
  4. 88+48+18=138\frac{8}{8} + \frac{4}{8} + \frac{1}{8} = \frac{13}{8}
Step 3: Identify the Option That is Not Equal

From the evaluations, option 3 results in 128\frac{12}{8}, which is not equal to 138\frac{13}{8}.

Final Answer

The option that is not equal to 1581 \frac{5}{8} is:

1+38+18 \boxed{1 + \frac{3}{8} + \frac{1}{8}}

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