Question

a, 5/15 + 2/5 

=

=

b, 2/7 + 12/21

=

=

c, 16/24 + 5/12 

=

=

Answer 1

\(a,\dfrac{5}{15}+\dfrac{2}{5}\\ =\dfrac{1}{3}+\dfrac{2}{5}\\ =\dfrac{11}{15}\\ b,\dfrac{2}{7}+\dfrac{12}{21}\\ =\dfrac{2}{7}+\dfrac{4}{7}\\ =\dfrac{6}{7}\\ c,\dfrac{16}{24}+\dfrac{5}{12}\\ =\dfrac{8}{12}+\dfrac{5}{12}\\ =\dfrac{13}{12}\)

Answer 2

a, 11/15                                         

b,6/7

c,13/12

Answer 3

a, 11/15                                         

b,6/7

c,13/1