Hello
✅ ( 1/7 - 7/2 * 3/2 )
= ( 1/7 - 21/4 )
= ( -143/28)
✅ ( 1/7 - 3/7 * 3/2 )
= ( 1/7 -9/14)
= ( -7/14 ) = ( -1/2 )
-143/28 * 2/-1
= (143*2)/28
= ( 143)/14
bonne journée