calcule 15% de 200
Let's evaluate: <math><mfrac><mrow><mn>200</mn><mo>×</mo><mn>15</mn></mrow><mrow><mn>100</mn></mrow></mfrac></math>
 <math><mfrac><mrow><mn>3000</mn></mrow><mrow><mn>100</mn></mrow></mfrac></math>

▷<b>Answer: &nbsp; <math><mn>30</mn></math></b><span style='font-size:smaller'> &nbsp; &nbsp; (computation required 2 steps and 1 ms)</span>