Question

Qual é o valor de M - 10?$M = { \frac{8}{7} - [ \frac{3}{4} + ( \frac{2}{3} * \frac{1}{8} * \frac{1}{2} ) * \frac{4}{7} ]*[8 \frac{1}{4}-( \frac{9}{2} + 3)] }* \frac{56}{37} - \frac{1}{2}$

Answer 1

8/7 - [ 3/4 + ( 2/48) * 4/7 ]  * [ 33/4 - ( 9/2 + 3/1)] * 56/37 - 1/2
nota
9/2 + 3/1 = ( 9 + 6)/2 = 15/2 ****  resposta colocada no parenteses acima
8/7 - [ 3/4 + 8/336]  * [ 33/4 -  15/2** ] * 56/37 - 1/2 =
8/7 - [ (252 +8)/336 ] * [ (33 - 30)/4 ]  * 56/37 - 1/2 =
8/7 - [ 260/336 ] * [ 3/4 ] * 56/37 - 1/2 =
8/7 - [ 260/336 * 3/4 * 56/37 }  - 1/2 =
8/7 - [ 43680/49728 ] - 1/2 = 
8/7 - 43680/49728 - 1/2 
mmc = 49728
( 56832 - 43680 - 24864)/ 49728  = - 11712/49728= - 5856/24864  = =  - 61/259
M - 10 = 
-61/259 - 10/1 = ( - 61 - 2590 )/259  = - 2651/259 = 10 int  61/259