Question

2/9 multiplied 2/5 + 2/9 multiplied 3/5 -11/18

Answer 1

2/9× 2/5=4/45

Then 3/5-11/18

Lcm of 5 and 18=90

3/5=3×18/5×18=54/90

11/18=11×5/18×5=55/90.

54/90-55/90=-1/90

2/9× -1/90=-2/810

4/45+ -2/810

lcm of 45 and 810=810

4×18/45×18=72/810

-2/810=-2×1/810×1=-1/820

2/9+-1/210

lcm=630

2/9=2×70/9×70=140/630

-1/210=-1×3/210×3=-3/630

140/630+-3/630

140/630-3/630

137/630 is the answer.