Lesson Fractions
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Currently in the middle school
5 6/7 + 7 8/13 First: Least Common Denominator(LCD)= 91: multiplying 6/7 MULTIPLY 13/13- 6 MULTIPLY 13 = 78, 7 MULTIPLY 13 = 91 8/13 MULTIPLY 7/7- 8 MULTIPLY 6 = 48, 13 MULTIPLY 7 = 91 78/91 + 48/91 = 126/91, Denominator will always stay the same when adding. Second: Simplfying 126/91 DIVIDE by 7/7 = 18/13 13 Goes into 18 once = 1 5/13 Third(LAST): Adding in the whole numbers 5+7+1 = 13 + 5/13 = 13 5/13
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