Question

using commutativity and associativity of addition of rational number, express each of the following as a rational number. a.2/5 + 7/3 + -4/5 + -1/3. b.4/7 + 0 + -8/9 + -13/7 + 17/21. c. -6/7 + -5/6 + -4/9 + -15/7
d.1/8 + 5/12 + 2/7 + 7/12 + 9/7 + -5/16
e.2/3 + -4/5 + 1/3 + 2/5​

Answer 1

Answer:

6. Find the estimated value of a) 1189 ÷ 56 b) 546 ÷ 7 c) 8435 - 597