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anonymous

  • 5 years ago

If someone could check my answer for 2/7+3/9+5/6=? I came up with 1 71/378 is that right?

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  1. anonymous
    • 5 years ago
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    hey you can actually check it in your calculator if you want to

  2. anonymous
    • 5 years ago
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    that would be cool

  3. anonymous
    • 5 years ago
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    i dont have a scientific calculator

  4. sandra
    • 5 years ago
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    hmmm, ok, well one common denominator is definitely 7*9*6 = 378

  5. sandra
    • 5 years ago
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    so it would be: (2*9*6) + (3*7*6) + (5*7*9) all over 378

  6. anonymous
    • 5 years ago
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    add 2/7 and 3/9 first, then reduce to lowest terms. Add that to 5/6 and you should get a denominator of 126

  7. anonymous
    • 5 years ago
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    oh yeah forgot about reducing, without it reduced though it came out to be549/ 378, made to a proper fraction of 1 71/378

  8. anonymous
    • 5 years ago
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    2/7 + 3/9 = 39/63 divided by 3 comes to 13/21. so you can now add 13/21 + 5/6

  9. sandra
    • 5 years ago
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    right, akospiya is telling you a good way to go about it

  10. sandra
    • 5 years ago
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    and btw - both 549 and 278 are divisible by 3

  11. sandra
    • 5 years ago
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    so you could reduce before making the mixed fraction

  12. anonymous
    • 5 years ago
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    appreciate the help, one step closer to remembering this stuff

  13. radar
    • 5 years ago
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    Did you get an answer of 1 19/42?

  14. anonymous
    • 5 years ago
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    Yup

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