fractions and decimals
posted by patricia .
please provide help with this
2 2/7 minus 1.75
please show workings
thanks

if you want an "exact" you will have to use only fractions
2 2/7 minus 1.75
= 16/7  7/4
= 64/28  49/8
= 15/28 
Let's change the decimal to a fraction.
1.75 = 1 3/4
Next we need a common denominator  which is 28.
2 2/7 = 2 8/28
1 3/4 = 1 21/28
2 8/28  1 21/28 = 1 36/28  1 21/28 = 15/28
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