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Elementary school math problem! ! `~`~
1/20x=8/45

X=8/45 divided by 1/20.

X=8/45 * 20 (one number divided by another is equal to multiplying its reciprocal)

x=32/9

1 1/7 divided by x=2 1/22 (unless the title is divided)

X= 1 1/7 divided by 2 1/22.

X =11/7 * 22/21(ibid.)

x=242/ 147

1/5x- 1/ 12 = 2/3

1/5x = 2/3+ 1/ 12

1/5x=3/4

X=3/4 divided by 1/5.

X=3/4 * 5 (same as above)

x= 15/4

The answer is 32 in 9, 65438+242 in 047 and 15 in 4.