simplify
a)31/8×22/5×13/5
b)11.2×0.15÷4/5
c)33/7÷8/21×1/27
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Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character
Vol. 104, No. 725 (Sep. 1, 1923), pp. 165-191 (27 pages)
Published By: Royal Society
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