Question 1(a) :
Solve:
23+17
The given fractions are 23 and 17. Since they have different denominators they are unlike fractions.
L.C.M of the denominators of the given fractions i.e. L.C.M. of 3 and 7 is 21.
∴23+17=2×7+1×321=14+321=1721
Question 3 (iv) Simplify:
712.812