Equivalent fraction with surds
Is 5√2-35/-47 the same as 35-5√2/47?
just trying to mark my work, and I got the first fraction, while the mark scheme says the second one "or equivalent"
just trying to mark my work, and I got the first fraction, while the mark scheme says the second one "or equivalent"
Original post by Blackrose06
Is 5√2-35/-47 the same as 35-5√2/47?
just trying to mark my work, and I got the first fraction, while the mark scheme says the second one "or equivalent"
just trying to mark my work, and I got the first fraction, while the mark scheme says the second one "or equivalent"
Yes
Original post by Blackrose06
Is 5√2-35/-47 the same as 35-5√2/47?
just trying to mark my work, and I got the first fraction, while the mark scheme says the second one "or equivalent"
just trying to mark my work, and I got the first fraction, while the mark scheme says the second one "or equivalent"
If I’m reading them correctly (I’m reading them as (5√2 - 35)/(-47) and (35 - 5√2)/47, respectively), then they are the same.
(edited 9 months ago)
Original post by TypicalNerd
If I’m reading them correctly (I’m reading them as (5√2 - 35)/(-47) and (35 - 5√2)/47, respectively), then they are the same.
Yes, that is being read correctly.
Thanks.
Original post by Blackrose06
Is 5√2-35/-47 the same as 35-5√2/47?
just trying to mark my work, and I got the first fraction, while the mark scheme says the second one "or equivalent"
just trying to mark my work, and I got the first fraction, while the mark scheme says the second one "or equivalent"
If you're struggling to see it with the surd confusing things, just write the 2 fractions as (a - b)/(-c) and (b - a)/c, and convince yourself that they are equivalent
Original post by davros
If you're struggling to see it with the surd confusing things, just write the 2 fractions as (a - b)/(-c) and (b - a)/c, and convince yourself that they are equivalent
Okay
Original post by Blackrose06
Okay
Sometimes if you're struggling to see something "obvious" because there are surds involved, it can help to rewrite what you think is happening to convince yourself that it's actually true
Quick Reply
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