Explanation:
0.7 is actually 7/10.
now we can solve by dividing fractions :
14 / 7/10 = 14/1 / 7/10 = 14×10 / (7×1) = 140/7 = 20
remember,
a/b / c/d = (ad) / (bc)
outer by outer divided by inner by inner ...
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