Answer:
1) cancel common factors
anything in the numerator in one fraction that equals to a denominator in the other fraction should cancel because they equal one
[tex] \frac{2}{9} \times \frac{9}{2} = 1[/tex]
also (10/10) = 1
this also answer the next two Q
4) multiply fractions
multiply what ever in the numerator and multiply in denominator and simplify if requires
(3/10) × ( 5/6) = 15 / 60
3× 5 = 15
10 × 6 = 60
15 / 60 can be simplified by dividing top and bottom by 3
15 ÷ 3 = 5
60 ÷ 3 = 20
= 5/20
this also can be simplified by dividing by 5
5 ÷ 5 = 1
20÷ 5 = 4
= ( 1/4)
