Tính phép tính sau a) 3/8 +1/16 b) 1/5 + 3/10 c)2/3 +4/3 d) 3/4 +2/5

a) \(\frac{3}{8}\) + \(\frac{1}{{16}}\)

= \(\frac{6}{{16}}\) + \(\frac{1}{{16}}\)

= \(\frac{7}{{16}}\)

b) \(\frac{1}{5}\) + \(\frac{3}{{10}}\)

= \(\frac{2}{{10}}\) + \(\frac{3}{{10}}\)

= \(\frac{5}{{10}} = \frac{1}{2}\)

c) \(\frac{2}{3}\) + \(\frac{4}{3}\)

= \(\frac{6}{3} = 2\)

d) \(\frac{3}{4}\) + \(\frac{2}{5}\)

= \(\frac{{15}}{{20}}\) + \(\frac{8}{{20}}\)

= \(\frac{{23}}{{20}}\)