Question

verify community property of addition and multiplication for 21/8 and 13/7​

Answer 1

Commutative property for

1 Addition

21/8 +13/7 =13/7+21/8 ( by commutative law of addition)

147/56+ 104/56= 104/56+ 147/56 ( lcm)

147 +104 = 104 + 47 ( 56 is common denominator)

¤ 251= 251

LHS= RHS

therefore thus proved