\(=\dfrac{1}{4}-\dfrac{1}{5}+\dfrac{13}{4}+\dfrac{3}{4}-\dfrac{1}{20}=4+\left(\dfrac{1}{4}-\dfrac{1}{5}-\dfrac{1}{20}\right)=4+0=4\)
\(=\dfrac{1}{4}-\dfrac{1}{5}+\dfrac{13}{4}+\dfrac{3}{4}-\dfrac{1}{20}=4+\left(\dfrac{1}{4}-\dfrac{1}{5}-\dfrac{1}{20}\right)=4+0=4\)
mẫu 25% = 25/100 = 25 : 25 phần 100 : 25 = 1/4 25% = 25/100 0,25
75%
15%
bài 6 tính
5 phần 4 + 2,6 + 75% 2,8 + 3 phần 5 : 15%
3/5 -1/4 :x =25/100
3/5 -1/4 :y =25/100
3/5-1/4:x=25/100.tìm x
tim x biet 3/5 - 1/4 : x = 25/100
3/5-1/4:x=25/100
tìm x biết 3/5-1/4:x=25/100
tìm x biết 3/5-1/4:x=25/100
Tính giá trị biểu thức:
\(A=\frac{\frac{16}{10}:\left(1\frac{3}{5}\times \frac{5}{4}\right)}{\frac{64}{100}-\frac{1}{25}}+\frac{\left(\frac{108}{100}-\frac{2}{25}\right):\frac{4}{7}}{\left(5\frac{5}{9}-2\frac{1}{4}\right)\times 2\frac{2}{17}}+\frac{3}{5}\times \frac{1}{2}:\frac{2}{5}\)