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To rename a mixed number to a fraction, you multiply the number outside the fraction by the denominator (the lower part of the fraction), and then you add that number to the numerator (higher number of the fraction). If you need to turn 2 3/4 into a fraction, you do this: 2*4=8, 8+3=11, so 2 3/4=11/4 as an improper fraction.
3/4
3/8 = 3 ÷ 8 = 0.375
You divide the numerator by the denominator (integer division). Write the integer result as a whole number, and the remainder in the numerator, without changing the denominator. Example: convert 11/3. Dividing 11 by 3 gives you 3, with a remainder of 2. So, the result is 3 2/3.
It is 31/8.