Question

các bạn giải giúp mình nhé a,7/3+11/2-1/5=  b,11/4*2/33-1/40

Answer 1

\(\frac{7}{3}\)+ \(\frac{11}{2}\)- \(\frac{1}{5}\)= \(\frac{70}{30}\)+ \(\frac{165}{30}\)- \(\frac{6}{30}\)

                                 = \(\frac{235}{30}\)- \(\frac{6}{30}\)

                                = \(\frac{229}{30}\)

\(\frac{11}{4}\)x \(\frac{2}{33}\)- \(\frac{1}{40}\)= \(\frac{22}{132}\)- \(\frac{1}{40}\)

                                   = \(\frac{17}{120}\)

Answer 2

a,=70/30+165/30+6/30

=70+165+6/30

=241/30

b,=22/132-1/40

=1/6-1/40

=17/120