Learning Resources MathShark Manual descarregar pdf (Página 20)

Level 5

Subtract fractions with unlike

denominators.

Level 6

Multiply fractions with unlike

denominators.

⁄

–

⁄

–

⁄

To multiply unlike fractions: first multiply the numerators

(top numerals in the fraction); then multiply the

denominators (bottom numerals in the fraction), and simplify.

Level 7

Multiply fractions and whole

numbers.

⁄

To multiply a fraction by a whole number, write the whole

number as a fraction: 4 =

⁄

. Then, as in Level 6, first multiply

the two numerators, then the denominators.

To divide fractions, invert the second number (the divisor),

then multiply.

Level 8

Divide fractions and whole

numbers.

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Learning Resources MathShark Manual Página 20