= (7/4-7/8- 12) × 8/7
= 7/4× 8/7-7× 8/7- 12× 8/7
= 2- 1-265438+2/0
= 265438+ 19 in 0。
19 and 72 ×(-36)
= (0 in 65438+20-72) × (-36)
= 20× (-36)- 1×(-36) in 72 copies.
= 0 in-720+65438+2.
=-7 19 and half of 1
( 1/3+ 1/4- 1/6) × (-24)
= 1×(-24)+ 1×(-24)- 1× (-24)-6.
=-8-6+4
=- 10
9 and 8/9× (-9)
= ( 1)×(-9)
= 10×(-9)-9 points 1×(-9)
=-90+ 1
=-89