Question

Efetue 2 1/4 - [( 1 1/3)-(1 1/2 - 2/3)]

Answer 1

Explicação passo-a-passo:

2 1/4-[(1 1/3)-(1 1/2-2/3)]

=2.4+1/4-[(1.3+1/3)-(1.2+1/2-2/3)]

=9/4-[(4/3)-(3/2-2/3)]

=9/4-[(4/3)-(9-4)/6]

=9/4-[(4/3-5/6)]

=9/4-(8-5)/6

= 9/4-3/6

= (54-12)/24

= 42/24

= 21/12

= 7/4

Espero ter ajudado bastante!)