Question

46/30 + 20/7 - 1/8 + 3/21 + 7/15 - 15/8

Answer 1

= 23/15 + 20/ 7 -1/8 + 1/7 + 7/15 - 15/8

= (23/15 + 7/15 ) + (20/7 +1/7) - (1/8 +15/8)

= 30/15 + 21/7 - 16/8

= 2 + 3 - 2=3

Answer 2

`46/30 + 20/7 - 1/8 + 3/21 + 7/15 - 15/8`

` = 23/15 + 20/7 - 1/8 + 1/7 + 7/15 - 15/8`

` = ( 23/15 + 7/15) + ( 20/7 + 1/7) - ( 1/8 + 15/8)`

` = 30/15 + 21/7 - 16/8`

` = 2 + 3 - 2`

` = 3`

Answer 3

= 3

Answer 4

=3 nhak bạn