(13/50-1/20)*3 4/7+5/12*1 7/15

([tex] \frac{13}{50} - \frac{1}{20} [/tex] ) * [tex] \frac{34}{7} + \frac{5}{12} * \frac{17}{15} [/tex]

1) [tex] \frac{13}{50} - \frac{1}{20} = \frac{26 - 5}{100} = \frac{21}{100} [/tex]
2) [tex] \frac{21}{100} * \frac{34}{7} = \frac{21 * 34}{100*7} = \frac{102}{100} = \frac{51}{50} [/tex]
3) [tex] \frac{5}{12} * \frac{17}{15} = \frac{17}{36} [/tex]
4)[tex] \frac{51}{50} + \frac{17}{36} = \frac{1343}{900} = 1 \frac{443}{900} [/tex]