3 целых 5/12-4/5+31/60

[latex]3 \frac{5}{12} [/latex]-[latex]\frac{4}{5} [/latex]+[latex]\frac{31}{60} [/latex] = [latex]\frac{41}{12} [/latex]-[latex]\frac{4}{5} [/latex]+[latex]\frac{31}{60} [/latex] = [latex]\frac{205}{60} [/latex]-[latex]\frac{48}{60} [/latex]+[latex]\frac{31}{60} [/latex] = [latex]\frac{188}{60} [/latex] = [latex]\frac{47}{15} [/latex] = [latex]3 \frac{2}{15} [/latex]