Tips and tricks for speedy mental division with harder fractionsI'm looking for a strategy to solve these kind of questions rapidly. Do you guys have any suggestions? 15 25 X = 14 35 .A. 3 5 B. 63 30 C. 14 15 D. 9 6 The only thing I can think of, is to look at 14 35 .and notice that the denominator has increased compared to the numerator, hence I can rule out A and C. Leaving only 2 options.

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Tips and tricks for speedy mental division with harder fractionsI&#039;m looking for a strategy to solve these kind of questions rapidly. Do you guys have any suggestions?            15      25        X    =      14    35    .A.       3    5  B.       63    30  C.       14    15  D.       9    6  The only thing I can think of, is to look at      14    35    .and notice that the denominator has increased compared to the numerator, hence I can rule out A and C. Leaving only 2 options.

aqueritztv · Accepted Answer

Strategy? well, I swing the x in the denominator over and flip the coefficient back.            15      25        X    =      14    35    .      15    25    =      14    35    X      15    25        35    14    =  X      15    5        7    14    =  X      3    1        1    2    =  X      3    2    =  X

Emery Boone · Accepted Answer

Write it as   X  =      35    14    ⋅      15    25   and cancel obvious factors. Do you recognize the factor   7 in the first one?

Tips and tricks for speedy mental division with harder fractions I'm looking for a strategy to solv

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