Conversion a mixed number 3 3/ 4 to a improper fraction: 3 3/4 = 3 3/ 4 = 3 · 4 + 3/ 4 = 12 + 3/ 4 = 15/ 4
To find a new numerator: a) Multiply the whole number 3 by the denominator 4. Whole number 3 equally 3 * 4/ 4 = 12/ 4
b) Add the answer from previous step 12 to the numerator 3. New numerator is 12 + 3 = 15 c) Write a previous answer (new numerator 15) over the denominator 4.
Three and three quarters is fifteen quarters Conversion a mixed number 2 2/ 5 to a improper fraction: 2 2/5 = 2 2/ 5 = 2 · 5 + 2/ 5 = 10 + 2/ 5 = 12/ 5
To find a new numerator: a) Multiply the whole number 2 by the denominator 5. Whole number 2 equally 2 * 5/ 5 = 10/ 5
b) Add the answer from previous step 10 to the numerator 2. New numerator is 10 + 2 = 12 c) Write a previous answer (new numerator 12) over the denominator 5.
Two and two fifths is twelve fifths Multiple: 15/ 4 * 12/ 5 = 15 · 12/ 4 · 5 = 180/ 20 = 9 · 20/ 1 · 20 = 9 Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(180, 20) = 20. In the following intermediate step, cancel by a common factor of 20 gives 9/ 1 . In other words - fifteen quarters multiplied by twelve fifths = nine.
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