Barkham Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889

by Barkham Burroughs

TO MULTIPLY FRACTIONS.

Multiply the numerators together for a new numerator and the denominators together for a new denominator.

Example. Multiply 7/8 by 5/6.

7/8 x 5/6 = 35/48. Ans.

TO DIVIDE FRACTIONS.

Multiply the dividend by the divisor inverted.

Example. Divide 7/8 by 5/6.

7/8 X 6/5 = 42/40. Reduced to simple form by dividing by 2 is 21/20 = 1-1/20. Ans.

TO MULTIPLY MIXED NUMBERS.

When two numbers are to be multiplied, one of which contains a fraction, first multiply the whole numbers together, then multiply the fraction by the other whole number, add the two results together for the correct answer.