Let's say you're working with the equation 2/x = 10/13. Now, multiply 2 * 13. 2 * 13 = 26. Now multiply x by 10. x * 10 = 10x. You can cross multiply in this direction first; it really doesn't matter as long as you multiply both numerators by the denominators diagonal from them. Just set 26 equal to 10x. 26 = 10x. It doesn't matter which number you list first; since they're equal, you can swap them from one side of the equation to the other with impunity, as long as you treat each term as a whole. So, if you're trying to solve 2/x = 10/13 for x, you'd have 2 * 13 = x * 10, or 26 = 10x. Now that you're working with 26 = 10x, you can start by finding a common denominator and dividing both 26 and 10 by a number that divides evenly into both numbers. Since they are both even, you can divide them by 2; 26/2 = 13 and 10/2 = 5. You're left with 13 = 5x. Now, to isolate x, divide both sides of the equation by 5. So, 13/5 = 5/5, or 13/5 = x. If you'd like the answer in decimal form, you can start by dividing both sides of the equation by 10 to get 26/10 = 10/10, or 2.6 = x.
اضرب بسط الكسر الأيمن في مقام الكسر الأيسر. اضرب بسط الكسر الأيسر في مقام الكسر الأيمن. ساوِ حاصلي الضرب. حل المعادلة في المتغير.
اضرب بسط الكسر الأيمن في مقام الكسر الأيسر. اضرب بسط الكسر الأيسر في مقام الكسر الأيمن. ساوِ حاصلي الضرب. حل المعادلة في المتغير.