Question

son ejercicios:
a) 16/5+(-6/5)
b)2 2/3-13/5-1 3/4

Answer 1

a) 16/5 + (- 6/5)
= 16/5 - 6/5
= 10/5
= 2

b) 2 2/3 - 13/5 - 1 3/4
- se convierten fracciones mixtas a simples:
= 8/3 - 13/5 - 7/4
mcm (3, 5, 4) = 60
= 160/60 - 156/60 - 105/60
= (160 - 156 - 105) / 60 
= -101/60
= -1 41/60

Answer 2

$a)\  \frac{16}{5} +(- \frac{6}{5} ) = \\ \\ \frac{16}{5} - \frac{6}{5} = \\ \\ \frac{16-6}{5} = \frac{10}{5}= \boxed{2}$

$b) \ 2 \frac{2}{3} - \frac{13}{5} - 1 \frac{3}{4} = \\ \\ \frac{6+2}{3} - \frac{13}{5} - \frac{4+3}{4} = \\ \\ \frac{8}{3} - \frac{13}{5} - \frac{7}{4} = \\ \\ sacamos \ comun \ denominador \ por \ medio \ fracciones \ equivalentes\ \\ \\ \frac{8}{3} - \frac{13}{5} - \frac{7}{4} = \\ \\\frac{160}{60} - \frac{156}{60} - \frac{105}{60} = \frac{160-156-105}{60} = \boxed{- \frac{101}{60}}$

Esperoq ue te sirva, salu2!!!!