CLASS 6 · LEARNING KNOWLEDGE
Multiplying and dividing fractions
How it works
When multiplying, numerator and denominator are each multiplied. Division by a fraction is multiplication by its reciprocal. Prior simplification makes the calculation easier.
Note
(a/b)·(c/d)=ac/bd; (a/b):(c/d)=ad/bc.
(a/b)·(c/d)=ac/bd; (a/b):(c/d)=ad/bc.
An example
Calculate (19/20) · 12 as a decimal number. Provide only the requested number.
Multiply the numerator by 12: 228/20. Result: 11.4.
Try it yourself now
50 Exercises · three difficulty levels · selection and number input
To the learning unit →Own explanation and own practice exercises by AmyMath. Subject reference framework: KMK Educational Standards Mathematics ESA/MSA. The topic assignment may vary by federal state.