9 /16 * (1/4+5/12)-8/15:16/45=-1 1/8
1/4+5/12=(1*3+5)/12=8/12=2/3
9/16*2/3=3/8
8/15:16/45=(8*45)/15*16=3/2
3/8-3/2=(3-3*4)/8=-9/8=-1 1/8
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9 /16 * (1/4+5/12)-8/15:16/45=-1 1/8
1/4+5/12=(1*3+5)/12=8/12=2/3
9/16*2/3=3/8
8/15:16/45=(8*45)/15*16=3/2
3/8-3/2=(3-3*4)/8=-9/8=-1 1/8