It is asking you to turn the decimal 1.8 into a fraction.
Let's practise
A recipe uses 1.8 kg of potatoes.
The scales show fractions of a kilogram.
What is 1.8 kg as a fraction?
- Read the question and then read it again. What is it asking you to do?
Show me
- Remember that every decimal number can be written as a fraction using the denominators 10, 100, 1,000 etc.
Show me
1.8 = 1
- Check the scale used on the scales.
Show me
It is in fifths, so you must rewrite your fraction in fifths.
1 = 1
- What is your answer? Check your working.
Show me
1 kg