• untorquer@lemmy.world
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    23 hours ago

    Fractions…

    10C* (9F/5C) + 32F = 50F

    Or

    10/5=2, 2*9=18, 18+32=50

    If you stick to multiples of 5 it’s easy:

    0C - 32F

    5C - 41F

    10C - 50F

    30C - 86F

    35C - 95F

    40C - 104F