Б)26 5/8 + а + 30;г)11 1/4 - х=3 7/10;е)у + 5/7 - 1/8 =2/3 - 1/14

[latex]26 \frac{5}{8}+a=30 \\ a=30-26 \frac{5}{8} \\ a=29 \frac{8}{8}-26 \frac{5}{8} \\ a=3 \frac{3}{8} [/latex] [latex]11 \frac{1}{4}-x=3 \frac{7}{10} \\ x=11 \frac{1}{4}-3 \frac{7}{10} \\ x=10 \frac{50}{40}-3 \frac{28}{40} \\ x=7 \frac{11}{20} [/latex] [latex]y+ \frac{5}{7}- \frac{1}{8}= \frac{2}{3}- \frac{1}{14} \\ y+ \frac{40-7}{56}= \frac{28-3}{51} \\ y= \frac{25}{51}- \frac{33}{56} \\ y= \frac{1400-1683}{2856} \\ y=- \frac{283}{2856} [/latex]