How 1 half, 1/2 (fraction notation), is written in decimal notation (with 3 decimals) ?
1/2 = 0.500
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1/2 x 2/3 = 1/3 or one third. Expressed as a decimal, this is equal to 0.3 recurring (that is, 0.3333...)
1/3 = 0.3333 recurring
1 fourth and 1 half do not equal 3 eighths (nor 3 eights!).
Expressed as a decimal, 3 1/5 is equal to 3.2.
One half is greater than three thirteenths - expressed as a decimal, 1/2 is equal to 0.5, while 3/13 is equal to 0.230769 recurring (that is, 0.230769230769...)