Question

por favor ayudaa!!!! es para mañana no entiendo (╥_╥)

Answer 1

13)(6/5×n"1/2--3/2)(x"5-4/2)=(6/5×n"4/2)(x"5-2)=(6/5×n"2)(x"3)=6/5×n"2×x"3
14)(1/4×n"2-4)(7×n"1/2--3/2)=(1/4×n"-2)(7×n"4/2)=(1/4×n"2)(7×n"2)=7/4