Помогите пожалуйста по математике 11 целые 7/12-1/4 13 целые 19/36-1/9 7 целые 41/48-5/6

[latex]11 \frac{7}{12} - \frac{1}{4} = 11 \frac{7}{12} - \frac{1*3}{4*3} =11 \frac{7}{12} - \frac{3}{12} =11 \frac{4}{12} =11 \frac{1}{3} [/latex] [latex]13 \frac{19}{36} - \frac{1}{9} = 13 \frac{19}{36} - \frac{4}{36} =13 \frac{15}{36} =13 \frac{5}{12} [/latex] [latex]7 \frac{41}{48} - \frac{5}{6} = 7 \frac{41}{48} - \frac{5*8}{6*8} = 7 \frac{41}{48} - \frac{40}{48} =7 \frac{1}{48} [/latex]