Solve 21:(0.05+3/20)-2,5*1,4

$$21 : ( 0.05 + \frac { 3 } { 20 } ) - 2,5 \cdot 1,4$$

Sort

$$4,5,103$$

Solution Steps

Convert decimal number 0.05 to fraction \frac{5}{100}. Reduce the fraction \frac{5}{100} to lowest terms by extracting and canceling out 5.

$$sort(\frac{21}{\frac{1}{20}+\frac{3}{20}}-2,5\times 1,4)$$

Since \frac{1}{20} and \frac{3}{20} have the same denominator, add them by adding their numerators.

$$sort(\frac{21}{\frac{1+3}{20}}-2,5\times 1,4)$$

Add 1 and 3 to get 4.

$$sort(\frac{21}{\frac{4}{20}}-2,5\times 1,4)$$

Reduce the fraction \frac{4}{20} to lowest terms by extracting and canceling out 4.

$$sort(\frac{21}{\frac{1}{5}}-2,5\times 1,4)$$

Divide 21 by \frac{1}{5} by multiplying 21 by the reciprocal of \frac{1}{5}.

$$sort(21\times 5-2,5\times 1,4)$$

Multiply 21 and 5 to get 105.

$$sort(105-2,5\times 1,4)$$

Subtract 2 from 105 to get 103.

$$sort(103,5\times 1,4)$$

Multiply 5 and 1 to get 5.

$$sort(103,5,4)$$

To sort the list, start from a single element 103.

$$103$$

Insert 5 to the appropriate location in the new list.

$$5,103$$

Insert 4 to the appropriate location in the new list.

$$4,5,103$$

Evaluate

$$103,5,4$$