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I'm not a teacher. I have an idea on how to do it but it should be taken with a grain of salt. If you tell her that she needs to learn another method because gets the result faster, she might not listen or understand. She might be like "How can it be done faster." However, it is true that there is another reason to learn the other method. That's for the sake ...


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This is the only way I've ever seen it taught or read it described in textbooks - except in my classes. I just teach students to multiply the numerator and denominator of the first fraction by the denominator of the second and vice versa. No prime factorizations, least common multiples, etc. are necessary. This is based on the idea that you don't need the ...


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I'm not a teacher. I don't know how most students really learn. This is just an idea and it should be taken with a grain of salt. It's the job of teachers to not rely on this answer, and do their own research based on this answer. I think it will work so much better for the teacher to give the students a worked example in class. They should pick two ...


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