Question

(20целых 16/25+13целых 9/25)-(23целых 4/14+7 целых 13/14)

Answer 1

$(20 frac{16}{25} +13 frac{9}{25} ) - (23 frac{4}{14} + 7 frac{13}{14} )= \ \ =( 33 + frac{16+9}{25} ) - (30 + frac{4+13}{14} )= \ \ =(33+1) - (30+ 1 frac{3}{14} )= \ \ = 34 - 31 frac{3}{14} = 2 frac{11}{14}$