Question

Calculati: a 3/40+7/160+33/320+5/64+11/160; b 7/15+1/20+3/180+11/90+5/60; c 7/12+4/25+15/24+1/48.

Answer 1

a) $\frac{3}{40} + \frac{7}{160} + \frac{33}{320} + \frac{5}{64} + \frac{11}{160} = \frac{24+14+33+25+22}{320}$ = $\frac{118}{320} = \frac{59}{160}$