Phone A and Phone B are identical and both start with a full battery.
After several hours:
Phone A has 42% of its battery remaining.
Phone B has used 35\displaystyle \frac{3}{5}53 of its battery and the rest is remaining.
Work out which phone has more battery remaining.
You must show your working.
293 exam-style questions on OCR GCSE Maths Fractions, Decimals and Percentages. Each one has a worked solution and a mark scheme showing where the marks go.