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13 June, 08:05

What is 5/7 minus 1/2 equal to in like units

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  1. 13 June, 08:15
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    3/14

    Step-by-step explanation:

    5/7 minus 1/2 is 5/7 - 1/2

    5/7 and 1/2 are both called proper fractions. 5 and 1 in each fraction are called the numerator while 7 and 2 are called denominators

    5/7 - 1/2

    Step one

    Find the lowest common multiple (LCM) of the denominators of each fractions

    Multiples of 7

    7 x 1 = 7

    7 x 2 = 14

    7 x 3 = 21

    Multiples of 2

    2 x 1 = 2

    2 x 2 = 4

    2 x 3 = 6

    2 x 4 = 8

    2 x 5 = 10

    2 x 6 = 12

    2 x 7 = 14

    The lowest common multiple of 2 and 7 is 14

    Step 2

    The LCM of 2 and 7 becomes the common denominator for both fractions.

    14/7 = 2

    14/2 = 7

    5/7 - 1/2 = [2 (5) - 7 (1) ]/14 = (10 - 7) / 14

    = 3/14
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