Вычеслите: 8-3целых 2/7=? (21/36-3/18)*9=

Question

Вычеслите: 8-3целых 2/7=? (21/36-3/18)*9=

Answer 1

8 - 3 2/7= (8-3) - 2/7= 5-2/7= 4 5/7

( 21/36 -3/18 ) * 9= ( 21/36 - 6/36) * 9=(15/36) * 9=15/4 =3 3/4

Answer 2

8 - 3 2/7 = 7 7/7 - 3 2/7 = 4 5/7
( 21/36 - 3/18 )•9 = ( 21/36 - 6/36 )•9 = (15/36)•9 = 15/4 = 3,75