If we subtract 28 from a whole number, it is reduced by two thirds. What is the original number?

Solution

I f w e s u b t r a c t 28 f ro m a w h o l e n u mb er, i t i s re d u ce d b y tw o t hi r d s . Wha t i s t h e or i g ina l n u mb er ?

Solution

1

Solution steps

Convert to decimal

\frac{2}{3} : 0.66666 \dots

Rounding to the nearest integer:If the digit in the tenth place (digit to the right of the decimal point) is less than 5, then round down, which means the units digit remains the same; otherwise round up, which means you should increase the unit digit by one

\underline{0.6} 6666

The unit digit is

0

The digit to the right of the decimal point is

6

Round to the nearest integer

1

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