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\frac{6+1}{2}-\left(\frac{3}{5}-\left(0,5-\frac{2}{5}\right)\right)-\frac{1\times 4+1}{4}
Multiply 3 and 2 to get 6.
\frac{7}{2}-\left(\frac{3}{5}-\left(0,5-\frac{2}{5}\right)\right)-\frac{1\times 4+1}{4}
Add 6 and 1 to get 7.
\frac{7}{2}-\left(\frac{3}{5}-\left(\frac{1}{2}-\frac{2}{5}\right)\right)-\frac{1\times 4+1}{4}
Convert decimal number 0,5 to fraction \frac{5}{10}. Reduce the fraction \frac{5}{10} to lowest terms by extracting and canceling out 5.
\frac{7}{2}-\left(\frac{3}{5}-\left(\frac{5}{10}-\frac{4}{10}\right)\right)-\frac{1\times 4+1}{4}
Least common multiple of 2 and 5 is 10. Convert \frac{1}{2} and \frac{2}{5} to fractions with denominator 10.
\frac{7}{2}-\left(\frac{3}{5}-\frac{5-4}{10}\right)-\frac{1\times 4+1}{4}
Since \frac{5}{10} and \frac{4}{10} have the same denominator, subtract them by subtracting their numerators.
\frac{7}{2}-\left(\frac{3}{5}-\frac{1}{10}\right)-\frac{1\times 4+1}{4}
Subtract 4 from 5 to get 1.
\frac{7}{2}-\left(\frac{6}{10}-\frac{1}{10}\right)-\frac{1\times 4+1}{4}
Least common multiple of 5 and 10 is 10. Convert \frac{3}{5} and \frac{1}{10} to fractions with denominator 10.
\frac{7}{2}-\frac{6-1}{10}-\frac{1\times 4+1}{4}
Since \frac{6}{10} and \frac{1}{10} have the same denominator, subtract them by subtracting their numerators.
\frac{7}{2}-\frac{5}{10}-\frac{1\times 4+1}{4}
Subtract 1 from 6 to get 5.
\frac{7}{2}-\frac{1}{2}-\frac{1\times 4+1}{4}
Reduce the fraction \frac{5}{10} to lowest terms by extracting and canceling out 5.
\frac{7-1}{2}-\frac{1\times 4+1}{4}
Since \frac{7}{2} and \frac{1}{2} have the same denominator, subtract them by subtracting their numerators.
\frac{6}{2}-\frac{1\times 4+1}{4}
Subtract 1 from 7 to get 6.
3-\frac{1\times 4+1}{4}
Divide 6 by 2 to get 3.
3-\frac{4+1}{4}
Multiply 1 and 4 to get 4.
3-\frac{5}{4}
Add 4 and 1 to get 5.
\frac{12}{4}-\frac{5}{4}
Convert 3 to fraction \frac{12}{4}.
\frac{12-5}{4}
Since \frac{12}{4} and \frac{5}{4} have the same denominator, subtract them by subtracting their numerators.
\frac{7}{4}
Subtract 5 from 12 to get 7.