a)
[tex] \frac{7}{10} \times \frac{30}{49} + \frac{5}{7} [/tex]
[tex]7 \times \frac{3}{9} + \frac{5}{7} [/tex]
[tex] \frac{3}{7} + \frac{5}{7} [/tex]
[tex] \frac{8}{7} [/tex]
b)
[tex] \frac{5}{2} \times \frac{4}{25} + \frac{1}{5} \times \frac{1}{2} [/tex]
[tex] \frac{2}{5} + \frac{1}{10} [/tex]
[tex] \frac{1}{2} [/tex]
c)
[tex]( \frac{7}{2} - \frac{5}{3} ) \times \frac{36}{55} [/tex]
[tex] \frac{6}{5} [/tex]
d)
[tex] \frac{2}{3} \times ((1 + 2) + ( \frac{1}{5} + \frac{1}{2} )) - \frac{13}{12} [/tex]
[tex] \frac{2}{3} \times (3 + \frac{7}{10} ) - \frac{13}{12} [/tex]
[tex] \frac{2}{3} \times 3 \frac{7}{10} - \frac{13}{12} [/tex]
[tex] \frac{2}{3} \times \frac{37}{10} - \frac{13}{12} [/tex]
[tex] \frac{1}{3} \times \frac{37}{5} - \frac{13}{12} [/tex]
[tex] \frac{37}{15} - \frac{13}{12} [/tex]
[tex] \frac{83}{60} [/tex]
