Arithmetic · real student question

Write the mixed number 10 2/3 as an improper fraction.

Question

Convert the mixed number

102310\frac{2}{3}

to an improper fraction.

Step-by-step solution

  1. Understand what the mixed number means. A mixed number is a sum in disguise:

    1023=10+2310\frac{2}{3} = 10 + \frac{2}{3}

    An improper fraction writes that whole sum over the single denominator 33, so the job is to convert the 1010 wholes into thirds and add on the thirds you already have.

  2. Multiply the whole number by the denominator. Each whole equals 33\tfrac{3}{3}, i.e. 33 thirds, so 1010 wholes are

    10×3=3010 \times 3 = 30

    thirds in total. This is the step the shortcut “multiply, add, keep the bottom” compresses.

  3. Add the numerator. Now include the extra 23\tfrac{2}{3}:

    30+2=3230 + 2 = 32

    so there are 3232 thirds altogether.

  4. Keep the original denominator. The size of each piece never changed — only how many you are counting — so the denominator stays 33:

    1023=32310\frac{2}{3} = \frac{32}{3}

    Combining as fractions gives the same thing: 303+23=323\tfrac{30}{3} + \tfrac{2}{3} = \tfrac{32}{3}.

  5. Sanity-check the size and the form. The same fractional part 23\tfrac23 sits on a larger whole number here, and only the multiplication changes: 10×3=3010 \times 3 = 30 instead of 4×3=124 \times 3 = 12. The denominator never changes during the conversion, which is the fastest self-check available.

  6. Reverse the process to confirm. Dividing back, 32÷3=1032 \div 3 = 10 remainder 22, which rebuilds 102310\frac{2}{3} exactly. As a decimal both forms equal 10.66666666666666610.666666666666666, so the conversion is verified in both directions.

Answer

1023=32310\frac{2}{3} = \frac{32}{3}

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