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two and one half times one fifth = 1/22 1/2 = 5/22 1/2 * 1/5 = 5/2 * 1/5 = 1/2
1/5 x 1/2 is 1/10
It means: 1/2 times 1/5 times 20 = 2
4 and 1/2 x 1/5 = 9/10
As we learned in the fourth grade, the word 'of' means 'times' or multiplication. This is a very powerful tool. 1 tenth of 1 fifth of 1 half of 12,000 = (1/10)(1/5)(1/2)(12,000) = 12,000/100 = 120