To multiply two fractions:
-- Multiply their numerators; the product is the numerator of the new fraction.
9 x 7 = 63 ; the new fraction is (63) / (something)
-- Multiply their denominators; the product is the denominator of the new fraction.
1 x 10 = 10 ; the new fraction is 63/10 .
The product of the two original fractions is 63/10 , or 6.3 .