Question

( 4/9 - 5/12 ) - ( 3/8 - 4/9 ) решить срочно

Answer 1

( 4/9 - 5/12 ) - ( 3/8 - 4/9 )=

4/9-5/12-3/8+4/9=

4/9+4/9-(5/12+3/8)=

8/9-(10/24+9/24)=

8/9 -19/24=64/72 -57/72=7/72

Answer 2

( 4/9 - 5/12 ) - ( 3/8 - 4/9 )=24

1)49-512=1636-1536=136

2)38-49=2772-3272=-572

3)1/36-(-5/72)=272-(-572)=772