BECE Mathematics 2013 Paper

Total fractions paid by Tom and Azuma $=\;\frac{2}{3}+\;\frac{1}{5}=\;\frac{5 \times 2+3 \times 1}{15}$Total fractions paid by Tom and Azuma $=\;\frac{10+3}{15}$Total fractions paid by Tom and Azuma $=\;\frac{13}{15}$The complete (whole) of the bill is $1$Remaining fraction paid by Tina $=1-\;\frac{13}{15}$Every whole number is being divided by 1 $1=\frac{1}{1}$ Remaining fraction paid by Tina $=\;\frac{1}{1}-\;\frac{13}{15}$Remaining fraction paid by Tina $=\;\frac{15 \times 1-1 \times 13}{15}$Remaining fraction paid by Tina $=\;\frac{15-13}{15}$Remaining fraction paid by Tina $=\;\frac{2}{15}$