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Tính giá trị biểu thức : a) 1325 * 0,1 ( 41,25 + 11,25) + 115 : 23 b) 5 và 1/8 * 3/4 – 1 và1/8 *0,75 – 1 Giúp mik nhé.
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Answers ( )
a) 1325 x 0,1 x ( 41,25 + 11,25) + 115 : 23
= 132,5 x 52,5 + 115 : 23
= 6956,25 + 5
= 6961,25
b) 5`1/8` x `3/4` – 1`1/8` x 0,75 – 1
= `41/8` x `3/4` – `9/8` x `3/4` – 1
= `123/32` – `27/32` – 1
= 3 – 1
= 2
Mik xin hay nhất ạ !
@Meoss__
a) 1325 * 0,1 ( 41,25 + 11,25) + 115 : 23
= 132,5 * 52,5 + 5
= 6956,25 + 5
= 6961,25
b) 5 1/8 * 3/4 – 1 1/8 * 0,75 – 1
= 48/8 * 3/4 – 9/8 * 3/4 – 1
= 123/32 – 27/32 – 1
= 3 – 1
= 2