Câu hỏi của Bùi thị Kim Vân

Question

a 19 và 1/4 cộng 1/2 x 2 và 1/3 cộng 5,75 - 1/6 cộng 74

Bùi thị Kim Vân · Accepted Answer

giúp mik v

Câu trả lời: giúp mik v

Nguyễn Xuân Thành · Answer

$19\dfrac{1}{4}\text{+}\dfrac{1}{2}.2\dfrac{1}{3}\text{+}5,75-\dfrac{1}{6}\text{+}74$

=$\dfrac{77}{4}\text{+}\dfrac{1}{2}.\dfrac{7}{3}\text{+}\dfrac{23}{4}-\dfrac{1}{6}\text{+}74$

=$\dfrac{77}{4}\text{+}\dfrac{23}{4}\text{+}\dfrac{7}{6}-\dfrac{1}{6}\text{+}74$

=$25\text{+}1\text{+}74$

=$100$Câu trả lời: $19\dfrac{1}{4}\text{+}\dfrac{1}{2}.2\dfrac{1}{3}\text{+}5,75-\dfrac{1}{6}\text{+}74$

=$\dfrac{77}{4}\text{+}\dfrac{1}{2}.\dfrac{7}{3}\text{+}\dfrac{23}{4}-\dfrac{1}{6}\text{+}74$

=$\dfrac{77}{4}\text{+}\dfrac{23}{4}\text{+}\dfrac{7}{6}-\dfrac{1}{6}\text{+}74$

=$25\text{+}1\text{+}74$

=$100$