The ratio of number A to number B and two different ratios of number B to number C are converted into the ratio of number A to number B to number C, which is also called total score. ?
Extended data:
Method of sharing:
1, find the common denominator. (The common denominator can be the least common multiple of two or more numbers. )
2. Then change the denominator of two or more fractions that need division from different denominators to the same denominator. According to the basic properties of fractions: the numerator and denominator of fractions are multiplied or divided by the same number at the same time (except zero), and the size of fractions remains unchanged. This is the key. After writing the same denominator, you should see how many times the denominator is magnified than the original score, so the numerator should be magnified at the same time, so that the score after the general score will be equal to the original score. )
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