2 49/72 ×15 -25 7/12; 5 11/20×8+6 3/10; 24 13/16+8 3/4 ×11; 7 83/90 ×27-156 4/15;

Question

2 49/72 ×15 -25 7/12; 5 11/20×8+6 3/10; 24 13/16+8 3/4 ×11; 7 83/90 ×27-156 4/15;

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Answer 1

2 49/72*15-25 7/12=193/72*15-307/12=2895/72-307/12=2895/72-1842/72=1053/72=14 45/72=14 5/8=14,625