Ôn tập: Khái niệm về phân số

Nối cột bên trái với cột bên phải sao cho phù hợp.

•  || \(\dfrac{3}{8}\)
•  || \(\dfrac{11}{16}\)
•  || \(\dfrac{4}{16}\)
•  || \(\dfrac{35}{100}\)

Viết các thương sau dưới dạng phân số.

• 23 : 99 || \(\dfrac{23}{99}\)
• 87 : 55 || \(\dfrac{87}{55}\)
• 1 : 24  || \(\dfrac{1}{24}\)

Viết số sau dưới dạng phân số có mẫu số là 1.

@p.y@

p.vt = random(10,100);
params({vt:p.vt});
p.ms = 1;
p.ts = '<input data-accept="'+p.vt+'" />';
p.y = '<span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>63</mn><mo>=</mo><mstyle displaystyle="true" scriptlevel="0"><mfrac><mi>x</mi><mn>1</mn></mfrac></mstyle></mrow><annotation encoding="application/x-tex">63=\dfrac{x}{1}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span>'+p.vt+'<span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.7935600000000003em;vertical-align:-0.686em;"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:1.10756em;"><span style="top:-2.314em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord">'+p.ms+'</span></span></span><span style="top:-3.23em;"><span class="pstrut" style="height:3em;"></span><span class="frac-line" style="border-bottom-width:0.04em;"></span></span><span style="top:-3.677em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault">'+p.ts+'</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.686em;"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span>';

Chọn các câu trả lời đúng.

1. 59 = \(\dfrac{59}{59}\)
2. 0 = \(\dfrac{0}{59}\)
3. 1 = \(\dfrac{59}{1}\)
4. 1 = \(\dfrac{59}{59}\)
5. 0 = \(\dfrac{59}{0}\)

Viết số thích hợp vào ô trống.

@p.y@

p.vt = 0;
p.ms = random(10,100);
params({ms:p.ms});
p.ts = '<input data-accept="'+p.vt+'" />';
p.y = '<span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>63</mn><mo>=</mo><mstyle displaystyle="true" scriptlevel="0"><mfrac><mi>x</mi><mn>1</mn></mfrac></mstyle></mrow><annotation encoding="application/x-tex">63=\dfrac{x}{1}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span>'+p.vt+'<span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.7935600000000003em;vertical-align:-0.686em;"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:1.10756em;"><span style="top:-2.314em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord">'+p.ms+'</span></span></span><span style="top:-3.23em;"><span class="pstrut" style="height:3em;"></span><span class="frac-line" style="border-bottom-width:0.04em;"></span></span><span style="top:-3.677em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault">'+p.ts+'</span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.686em;"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span>';