Yes, 1/2 is equivalent to 4/8, because 4/8 reduced to simplest form is 1/2.
Martin will have to mark 0.125 on the
Let the original weight of the scale be 1kg. Hence we can say the original mark for 1kg weight is 1 that is:
1kg = 1 ................ 1
Since we are to calculate where to mark for a 1/8 kg weight, we can write;
1/8 kg = x ..................2
Divide both expressions

This means Martin will have to mark 0.125 on the scale.
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Answer:
Look at pics.
Step-by-step explanation:
Hope this helps!
Answer:
24.30 Difference, sale price 56.70
Step-by-step explanation:
30% off 81.00 is 56.70
The difference is 24.30