1) (4/9) (5/8) 7.2= (20/72) 7.2= 0.2777777777777778 7.2= 1.9999999999999998
2) (1 1/2) (2 2/11) + 2 3/4 (2 2/11) - 2 2/11 (3 5/6)= (3/2) (24/11) + (11/4) (24/11) - (24/11) (23/6)= (72/22) + (264/44) - (552/66)= 3.2727272727272725 + 6 - 8.363636363636363= 1.9090909090909092
Therefore, the answers to the given expressions are:1) 1.99999999999999982) 1.9090909090909092
1) (4/9) (5/8) 7.2
= (20/72) 7.2
= 0.2777777777777778 7.2
= 1.9999999999999998
2) (1 1/2) (2 2/11) + 2 3/4 (2 2/11) - 2 2/11 (3 5/6)
= (3/2) (24/11) + (11/4) (24/11) - (24/11) (23/6)
= (72/22) + (264/44) - (552/66)
= 3.2727272727272725 + 6 - 8.363636363636363
= 1.9090909090909092
Therefore, the answers to the given expressions are:
1) 1.9999999999999998
2) 1.9090909090909092