Question

(10 1/7-y) : 1 1/7+2 5/8=7 1/8

Answer 1

$(10 frac{1}{7} -y):1 frac{1}{7} +2 frac{5}{8} =7 frac{1}{8} \ (10 frac{1}{7} -y):1 frac{1}{7} =7 frac{1}{8} -2 frac{5}{8} \ (10 frac{1}{7} -y):1 frac{1}{7} =4 frac{1}{2} \ 10 frac{1}{7} -y=4 frac{1}{2} *1 frac{1}{7} \ 10 frac{1}{7} -y= frac{9}{2} * frac{8}{7} \ 10 frac{1}{7} -y=5 frac{1}{7} \ y=10 frac{1}{7} -5 frac{1}{7} \ y=5$