Question

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Answer 1

$5 \frac{3}{8} - 1.8 = \frac{43}{8} - \frac{9}{5} = \frac{143}{40}$

Answer 2

To subtract 1 8/8 from 5 3/8, you can follow these steps:

1. Subtract the whole numbers: 5 - 1 = 4.
2. Subtract the fractions: 3/8 - 8/8 = (3 - 8)/8 = -5/8.

So, the result is 4 - 5/8. If you want to express it as a mixed number, you can convert the improper fraction to a mixed number:

-5/8 can be written as -1/8.

So, 4 - 5/8 is equal to 3 7/8.