Question

resolver las sgts operaciones
2/3 - ( 5/2 + 7/4)
( - 1/4 - 5/2 ) ÷ ( 8/3 - 1/6 )
[ ( 3 - 5/4 ) X ( - 7/6 ) ] ÷ 15/2
por fa urgente

Answer 1

2/3-(10/4+7/4)
2/3-17/4
8/12-51/12
-43/12

(-1/4-10/4):(16/6-1/6)
(-11/4):15/6
-11/4:5/2
-22/20
-11/10

((12/4-5/4)x(-7/6)):15/2
(7/4x-7/6):15/2
-49/24:15/2
-98/360
-49/180