15 7/12 + 4 3/20 + 5 4/15
⚠ 15 7/12 is read as the mixed number 15 + 7/12
⚠ 4 3/20 is read as the mixed number 4 + 3/20
Let's evaluate: 15 + 712 + 4 + 320 + 5 + 415
19 + 712 + 320 + 5 + 415
24 + 712 + 320 + 415
24 + 7×5 + 3×312×5 + 415
24 + 35 + 960 + 415
24 + 4460 + 415
24 + 44 + 4×460
24 + 44 + 1660
24 + 6060
24 + 1
▶Result:   25