For instance, a student may estimate that 1/2+1/5 is greater than 1/2 but smaller than 3/4 but still calculate ... fractions is an over-reliance on cross-multiplication to identify equivalent ...

These are called equivalent fractions and equivalent decimals. To find equivalent decimals for halves and quarters, you can use division or remember some common conversions: \(\frac {1} ...

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ST explains obscure internet jargon and why older generations might never understand. Read more at straitstimes.com. Read ...